diff --git a/502.html b/502.html
index 1529473..4eb512a 100644
--- a/502.html
+++ b/502.html
@@ -49,14 +49,14 @@
         <br>
         <div class="popup">
             <div>
-                <img class="logo" src="/logo.png" alt="DMOJ">
+                <img class="logo" src="logo.png" alt="DMOJ">
             </div>
-            <h1 style="width: 100%;">Oops, the DMOJ is down.</h1>
+            <h1 style="width: 100%;">Oops, LQDOJ is down now.</h1>
         </div>
         <br>
         <hr>
         <br>
-        <h2 class="msg">But don't worry, we'll be back soon.</h2>
+        <h2 class="msg">But don't worry, we'll be back soon. <br> In the free time, you can read my idol's codes <a href="http://codeforces.com/profile/cuom1999" style="color:red; text-decoration:none">cuom1999</a></h2>
     </div>
 </body>
 </html>
diff --git a/<desired bridge log path> b/<desired bridge log path>
index 83027ee..b001604 100644
--- a/<desired bridge log path>	
+++ b/<desired bridge log path>	
@@ -554,3 +554,3649 @@ INFO 2020-01-26 05:15:35,531 judgehandler judge1: 3 test case(s) completed on: 4
 INFO 2020-01-26 05:15:35,729 judgehandler judge1: Grading has ended on: 42
 INFO 2020-01-26 05:15:35,729 judgelist Judge available after grading 42: judge1
 INFO 2020-01-26 05:28:39,295 judgehandler Judge disconnected from: ('127.0.0.1', 34940)
+INFO 2020-03-10 02:09:35,857 judgehandler Judge connected from: ('127.0.0.1', 39482)
+INFO 2020-03-10 02:09:35,878 judgehandler Judge authenticated: ('127.0.0.1', 39482) (judge1)
+INFO 2020-03-10 02:13:06,037 judgelist Free judges: 1
+INFO 2020-03-10 02:13:06,039 judgelist Dispatched submission 43 to: judge1
+INFO 2020-03-10 02:13:06,060 judgehandler Submission acknowledged: 43
+INFO 2020-03-10 02:13:08,730 judgehandler judge1: Submission failed to compile: 43
+INFO 2020-03-10 02:13:08,730 judgelist Judge available after grading 43: judge1
+INFO 2020-03-10 02:15:06,114 judgelist Free judges: 1
+INFO 2020-03-10 02:15:06,114 judgelist Dispatched submission 44 to: judge1
+INFO 2020-03-10 02:15:06,122 judgehandler Submission acknowledged: 44
+INFO 2020-03-10 02:15:06,762 judgehandler judge1: Grading has begun on: 44
+INFO 2020-03-10 02:15:06,835 judgehandler judge1: 2 test case(s) completed on: 44
+INFO 2020-03-10 02:15:06,985 judgehandler judge1: 1 test case(s) completed on: 44
+INFO 2020-03-10 02:15:07,944 judgehandler judge1: Grading has ended on: 44
+INFO 2020-03-10 02:15:07,945 judgelist Judge available after grading 44: judge1
+INFO 2020-03-10 02:15:42,912 judgelist Free judges: 1
+INFO 2020-03-10 02:15:42,913 judgelist Dispatched submission 45 to: judge1
+INFO 2020-03-10 02:15:42,932 judgehandler Submission acknowledged: 45
+INFO 2020-03-10 02:15:43,099 judgehandler judge1: Grading has begun on: 45
+INFO 2020-03-10 02:15:43,169 judgehandler judge1: 1 test case(s) completed on: 45
+INFO 2020-03-10 02:15:43,375 judgehandler judge1: 6 test case(s) completed on: 45
+INFO 2020-03-10 02:15:43,626 judgehandler judge1: 5 test case(s) completed on: 45
+INFO 2020-03-10 02:15:43,877 judgehandler judge1: 7 test case(s) completed on: 45
+INFO 2020-03-10 02:15:44,392 judgehandler judge1: 3 test case(s) completed on: 45
+INFO 2020-03-10 02:15:44,555 judgehandler judge1: 2 test case(s) completed on: 45
+INFO 2020-03-10 02:15:44,649 judgehandler judge1: 3 test case(s) completed on: 45
+INFO 2020-03-10 02:15:44,881 judgehandler judge1: 4 test case(s) completed on: 45
+INFO 2020-03-10 02:15:45,131 judgehandler judge1: 6 test case(s) completed on: 45
+INFO 2020-03-10 02:15:45,382 judgehandler judge1: 6 test case(s) completed on: 45
+INFO 2020-03-10 02:15:45,632 judgehandler judge1: 6 test case(s) completed on: 45
+INFO 2020-03-10 02:15:45,883 judgehandler judge1: 5 test case(s) completed on: 45
+INFO 2020-03-10 02:15:46,327 judgehandler judge1: 3 test case(s) completed on: 45
+INFO 2020-03-10 02:15:48,509 judgehandler judge1: 1 test case(s) completed on: 45
+INFO 2020-03-10 02:15:50,033 judgehandler judge1: 2 test case(s) completed on: 45
+INFO 2020-03-10 02:15:51,309 judgehandler judge1: 1 test case(s) completed on: 45
+INFO 2020-03-10 02:15:53,383 judgehandler judge1: 1 test case(s) completed on: 45
+INFO 2020-03-10 02:15:54,865 judgehandler judge1: 2 test case(s) completed on: 45
+INFO 2020-03-10 02:16:00,216 judgehandler judge1: 1 test case(s) completed on: 45
+INFO 2020-03-10 02:16:00,455 judgehandler judge1: 2 test case(s) completed on: 45
+INFO 2020-03-10 02:16:01,919 judgehandler judge1: 3 test case(s) completed on: 45
+INFO 2020-03-10 02:16:02,733 judgehandler judge1: 1 test case(s) completed on: 45
+INFO 2020-03-10 02:16:05,140 judgehandler judge1: 1 test case(s) completed on: 45
+INFO 2020-03-10 02:16:06,445 judgehandler judge1: 2 test case(s) completed on: 45
+INFO 2020-03-10 02:16:06,764 judgehandler judge1: 2 test case(s) completed on: 45
+INFO 2020-03-10 02:16:06,858 judgehandler judge1: 1 test case(s) completed on: 45
+INFO 2020-03-10 02:16:06,953 judgehandler judge1: 3 test case(s) completed on: 45
+INFO 2020-03-10 02:16:07,057 judgehandler judge1: 3 test case(s) completed on: 45
+INFO 2020-03-10 02:16:07,151 judgehandler judge1: 1 test case(s) completed on: 45
+INFO 2020-03-10 02:16:07,575 judgehandler judge1: 1 test case(s) completed on: 45
+INFO 2020-03-10 02:16:08,317 judgehandler judge1: 1 test case(s) completed on: 45
+INFO 2020-03-10 02:16:09,451 judgehandler judge1: 2 test case(s) completed on: 45
+INFO 2020-03-10 02:16:09,639 judgehandler judge1: 1 test case(s) completed on: 45
+INFO 2020-03-10 02:16:09,780 judgehandler judge1: 2 test case(s) completed on: 45
+INFO 2020-03-10 02:16:09,873 judgehandler judge1: 1 test case(s) completed on: 45
+INFO 2020-03-10 02:16:09,967 judgehandler judge1: 2 test case(s) completed on: 45
+INFO 2020-03-10 02:16:10,061 judgehandler judge1: 2 test case(s) completed on: 45
+INFO 2020-03-10 02:16:10,184 judgehandler judge1: 1 test case(s) completed on: 45
+INFO 2020-03-10 02:16:10,276 judgehandler judge1: 1 test case(s) completed on: 45
+INFO 2020-03-10 02:16:10,392 judgehandler judge1: 1 test case(s) completed on: 45
+INFO 2020-03-10 02:16:10,486 judgehandler judge1: 1 test case(s) completed on: 45
+INFO 2020-03-10 02:16:10,586 judgehandler judge1: Grading has ended on: 45
+INFO 2020-03-10 02:16:10,587 judgelist Judge available after grading 45: judge1
+INFO 2020-03-10 02:17:15,351 judgehandler judge1: Updated problem list
+INFO 2020-03-10 02:17:15,362 judgehandler judge1: Updated problem list
+INFO 2020-03-10 02:17:15,370 judgehandler judge1: Updated problem list
+INFO 2020-03-10 02:17:15,933 judgehandler judge1: Updated problem list
+INFO 2020-03-10 02:17:26,544 judgelist Free judges: 1
+INFO 2020-03-10 02:17:26,545 judgelist Dispatched submission 46 to: judge1
+INFO 2020-03-10 02:17:26,561 judgehandler Submission acknowledged: 46
+INFO 2020-03-10 02:17:27,964 judgehandler judge1: Submission generated compiler messages: 46
+INFO 2020-03-10 02:17:29,114 judgehandler judge1: Grading has begun on: 46
+INFO 2020-03-10 02:17:29,152 judgehandler judge1: 2 test case(s) completed on: 46
+INFO 2020-03-10 02:17:29,291 judgehandler judge1: 5 test case(s) completed on: 46
+INFO 2020-03-10 02:17:29,682 judgehandler judge1: 5 test case(s) completed on: 46
+INFO 2020-03-10 02:17:30,872 judgehandler judge1: 3 test case(s) completed on: 46
+INFO 2020-03-10 02:17:32,315 judgehandler judge1: 1 test case(s) completed on: 46
+INFO 2020-03-10 02:17:32,723 judgehandler judge1: 2 test case(s) completed on: 46
+INFO 2020-03-10 02:17:35,293 judgehandler judge1: 1 test case(s) completed on: 46
+INFO 2020-03-10 02:17:36,588 judgehandler judge1: 2 test case(s) completed on: 46
+INFO 2020-03-10 02:17:38,202 judgehandler judge1: 1 test case(s) completed on: 46
+INFO 2020-03-10 02:17:38,699 judgehandler judge1: 1 test case(s) completed on: 46
+INFO 2020-03-10 02:17:40,776 judgehandler judge1: 1 test case(s) completed on: 46
+INFO 2020-03-10 02:17:41,393 judgehandler judge1: 3 test case(s) completed on: 46
+INFO 2020-03-10 02:17:41,681 judgehandler judge1: 7 test case(s) completed on: 46
+INFO 2020-03-10 02:17:42,583 judgehandler judge1: 2 test case(s) completed on: 46
+INFO 2020-03-10 02:17:44,278 judgehandler judge1: 1 test case(s) completed on: 46
+INFO 2020-03-10 02:17:46,662 judgehandler judge1: 2 test case(s) completed on: 46
+INFO 2020-03-10 02:17:47,980 judgehandler judge1: 1 test case(s) completed on: 46
+INFO 2020-03-10 02:17:48,266 judgehandler judge1: 1 test case(s) completed on: 46
+INFO 2020-03-10 02:17:49,537 judgehandler judge1: 1 test case(s) completed on: 46
+INFO 2020-03-10 02:17:51,243 judgehandler judge1: 2 test case(s) completed on: 46
+INFO 2020-03-10 02:17:53,592 judgehandler judge1: 1 test case(s) completed on: 46
+INFO 2020-03-10 02:17:55,442 judgehandler judge1: 1 test case(s) completed on: 46
+INFO 2020-03-10 02:17:56,961 judgehandler judge1: 1 test case(s) completed on: 46
+INFO 2020-03-10 02:17:58,601 judgehandler judge1: 3 test case(s) completed on: 46
+INFO 2020-03-10 02:17:58,997 judgehandler judge1: 8 test case(s) completed on: 46
+INFO 2020-03-10 02:17:59,290 judgehandler judge1: 1 test case(s) completed on: 46
+INFO 2020-03-10 02:17:59,384 judgehandler judge1: 1 test case(s) completed on: 46
+INFO 2020-03-10 02:17:59,477 judgehandler judge1: 1 test case(s) completed on: 46
+INFO 2020-03-10 02:17:59,582 judgehandler judge1: 1 test case(s) completed on: 46
+INFO 2020-03-10 02:18:00,870 judgehandler judge1: 2 test case(s) completed on: 46
+INFO 2020-03-10 02:18:01,125 judgehandler judge1: 1 test case(s) completed on: 46
+INFO 2020-03-10 02:18:01,255 judgehandler judge1: 1 test case(s) completed on: 46
+INFO 2020-03-10 02:18:01,374 judgehandler judge1: 1 test case(s) completed on: 46
+INFO 2020-03-10 02:18:01,514 judgehandler judge1: 6 test case(s) completed on: 46
+INFO 2020-03-10 02:18:02,809 judgehandler judge1: 3 test case(s) completed on: 46
+INFO 2020-03-10 02:18:03,552 judgehandler judge1: 1 test case(s) completed on: 46
+INFO 2020-03-10 02:18:03,764 judgehandler judge1: 1 test case(s) completed on: 46
+INFO 2020-03-10 02:18:05,172 judgehandler judge1: 2 test case(s) completed on: 46
+INFO 2020-03-10 02:18:05,641 judgehandler judge1: 1 test case(s) completed on: 46
+INFO 2020-03-10 02:18:05,939 judgehandler judge1: 2 test case(s) completed on: 46
+INFO 2020-03-10 02:18:06,521 judgehandler judge1: 1 test case(s) completed on: 46
+INFO 2020-03-10 02:18:06,880 judgehandler judge1: 3 test case(s) completed on: 46
+INFO 2020-03-10 02:18:07,692 judgehandler judge1: 1 test case(s) completed on: 46
+INFO 2020-03-10 02:18:08,482 judgehandler judge1: 2 test case(s) completed on: 46
+INFO 2020-03-10 02:18:08,624 judgehandler judge1: 2 test case(s) completed on: 46
+INFO 2020-03-10 02:18:08,718 judgehandler judge1: 7 test case(s) completed on: 46
+INFO 2020-03-10 02:18:08,823 judgehandler judge1: 1 test case(s) completed on: 46
+INFO 2020-03-10 02:18:09,633 judgehandler judge1: Grading has ended on: 46
+INFO 2020-03-10 02:18:09,634 judgelist Judge available after grading 46: judge1
+INFO 2020-03-10 02:18:12,080 judgehandler judge1: Updated problem list
+INFO 2020-03-10 02:24:00,857 judgehandler judge1: Updated problem list
+INFO 2020-03-10 02:24:01,320 judgehandler judge1: Updated problem list
+INFO 2020-03-10 02:25:03,175 judgelist Free judges: 1
+INFO 2020-03-10 02:25:03,176 judgelist Dispatched submission 47 to: judge1
+INFO 2020-03-10 02:25:03,193 judgehandler Submission acknowledged: 47
+INFO 2020-03-10 02:25:04,166 judgehandler judge1: Grading has begun on: 47
+INFO 2020-03-10 02:25:04,239 judgehandler judge1: 2 test case(s) completed on: 47
+INFO 2020-03-10 02:25:04,349 judgehandler judge1: 1 test case(s) completed on: 47
+INFO 2020-03-10 02:25:04,417 judgehandler judge1: Grading has ended on: 47
+INFO 2020-03-10 02:25:04,418 judgelist Judge available after grading 47: judge1
+INFO 2020-03-10 02:26:44,823 judgelist Free judges: 1
+INFO 2020-03-10 02:26:44,823 judgelist Dispatched submission 48 to: judge1
+INFO 2020-03-10 02:26:44,827 judgehandler Submission acknowledged: 48
+INFO 2020-03-10 02:26:46,040 judgehandler judge1: Submission generated compiler messages: 48
+INFO 2020-03-10 02:26:46,545 judgehandler judge1: Grading has begun on: 48
+INFO 2020-03-10 02:26:46,583 judgehandler judge1: 3 test case(s) completed on: 48
+INFO 2020-03-10 02:26:46,648 judgehandler judge1: Grading has ended on: 48
+INFO 2020-03-10 02:26:46,648 judgelist Judge available after grading 48: judge1
+INFO 2020-03-16 02:34:23,436 judgehandler Judge connected from: ('127.0.0.1', 58500)
+INFO 2020-03-16 02:34:23,438 judgehandler Judge authenticated: ('127.0.0.1', 58500) (judge1)
+INFO 2020-03-16 02:54:41,002 judgehandler judge1: Updated problem list
+INFO 2020-03-16 02:55:20,713 judgehandler judge1: Updated problem list
+INFO 2020-03-16 02:55:24,191 judgehandler judge1: Updated problem list
+INFO 2020-03-16 02:55:28,666 judgehandler judge1: Updated problem list
+INFO 2020-03-16 02:55:30,476 judgehandler judge1: Updated problem list
+INFO 2020-03-16 02:55:38,589 judgehandler judge1: Updated problem list
+INFO 2020-03-16 02:55:50,475 judgehandler judge1: Updated problem list
+INFO 2020-03-16 02:56:01,002 judgehandler judge1: Updated problem list
+INFO 2020-03-16 02:56:25,834 judgehandler judge1: Updated problem list
+INFO 2020-03-16 02:56:39,985 judgehandler judge1: Updated problem list
+INFO 2020-03-16 02:57:13,328 judgehandler judge1: Updated problem list
+INFO 2020-03-16 02:57:47,626 judgelist Free judges: 1
+INFO 2020-03-16 02:57:47,628 judgelist Dispatched submission 49 to: judge1
+INFO 2020-03-16 02:57:47,649 judgehandler Submission acknowledged: 49
+INFO 2020-03-16 02:57:47,758 judgehandler judge1: Grading has begun on: 49
+INFO 2020-03-16 02:57:47,828 judgehandler judge1: 1 test case(s) completed on: 49
+INFO 2020-03-16 02:57:47,895 judgehandler judge1: Grading has ended on: 49
+INFO 2020-03-16 02:57:47,896 judgelist Judge available after grading 49: judge1
+INFO 2020-03-16 02:58:01,408 judgehandler judge1: Updated problem list
+INFO 2020-03-16 02:58:02,052 judgehandler judge1: Updated problem list
+INFO 2020-03-16 02:58:32,793 judgehandler judge1: Updated problem list
+INFO 2020-03-16 02:58:32,839 judgehandler judge1: Updated problem list
+INFO 2020-03-16 02:58:32,860 judgehandler judge1: Updated problem list
+INFO 2020-03-16 02:58:47,946 judgehandler judge1: Updated problem list
+INFO 2020-03-16 02:58:48,942 judgehandler judge1: Updated problem list
+INFO 2020-03-16 02:58:56,280 judgehandler judge1: Updated problem list
+INFO 2020-03-16 02:58:56,639 judgehandler judge1: Updated problem list
+INFO 2020-03-16 02:59:03,210 judgehandler judge1: Updated problem list
+INFO 2020-03-16 02:59:39,329 judgelist Free judges: 1
+INFO 2020-03-16 02:59:39,330 judgelist Dispatched submission 50 to: judge1
+INFO 2020-03-16 02:59:39,347 judgehandler Submission acknowledged: 50
+INFO 2020-03-16 02:59:40,048 judgehandler judge1: Grading has begun on: 50
+INFO 2020-03-16 02:59:40,431 judgehandler judge1: 1 test case(s) completed on: 50
+INFO 2020-03-16 02:59:40,737 judgehandler judge1: Grading has ended on: 50
+INFO 2020-03-16 02:59:40,737 judgelist Judge available after grading 50: judge1
+INFO 2020-03-16 03:02:36,588 judgehandler judge1: Updated problem list
+INFO 2020-03-16 03:04:08,800 judgehandler judge1: Updated problem list
+INFO 2020-03-16 03:04:09,051 judgehandler judge1: Updated problem list
+INFO 2020-03-16 03:04:27,267 judgehandler judge1: Updated problem list
+INFO 2020-03-16 03:04:58,877 judgehandler judge1: Updated problem list
+INFO 2020-03-16 03:05:07,980 judgehandler judge1: Updated problem list
+INFO 2020-03-16 03:05:08,870 judgehandler judge1: Updated problem list
+INFO 2020-03-16 03:05:14,472 judgehandler judge1: Updated problem list
+INFO 2020-03-16 03:09:09,206 judgehandler judge1: Updated problem list
+INFO 2020-03-16 03:09:17,772 judgehandler judge1: Updated problem list
+INFO 2020-03-16 03:09:41,468 judgehandler judge1: Updated problem list
+INFO 2020-03-16 03:09:43,369 judgehandler judge1: Updated problem list
+INFO 2020-03-16 03:09:52,096 judgehandler judge1: Updated problem list
+INFO 2020-03-16 03:09:52,228 judgehandler judge1: Updated problem list
+INFO 2020-03-16 03:09:55,720 judgehandler judge1: Updated problem list
+INFO 2020-03-16 03:10:01,076 judgehandler judge1: Updated problem list
+INFO 2020-03-16 03:10:07,556 judgehandler judge1: Updated problem list
+INFO 2020-03-16 03:10:18,501 judgehandler judge1: Updated problem list
+INFO 2020-03-16 04:05:05,007 judgehandler judge1: Updated problem list
+INFO 2020-03-16 04:05:19,876 judgehandler judge1: Updated problem list
+INFO 2020-03-16 04:05:54,743 judgelist Free judges: 1
+INFO 2020-03-16 04:05:54,744 judgelist Dispatched submission 51 to: judge1
+INFO 2020-03-16 04:05:54,764 judgehandler Submission acknowledged: 51
+INFO 2020-03-16 04:05:55,913 judgehandler judge1: Grading has begun on: 51
+INFO 2020-03-16 04:05:56,055 judgehandler judge1: 1 test case(s) completed on: 51
+INFO 2020-03-16 04:05:56,194 judgehandler judge1: Grading has ended on: 51
+INFO 2020-03-16 04:05:56,194 judgelist Judge available after grading 51: judge1
+INFO 2020-03-16 04:06:28,949 judgelist Free judges: 1
+INFO 2020-03-16 04:06:28,949 judgelist Dispatched submission 52 to: judge1
+INFO 2020-03-16 04:06:28,967 judgehandler Submission acknowledged: 52
+INFO 2020-03-16 04:06:29,005 judgehandler judge1: Grading has begun on: 52
+INFO 2020-03-16 04:06:29,084 judgehandler judge1: 1 test case(s) completed on: 52
+INFO 2020-03-16 04:06:29,195 judgehandler judge1: Grading has ended on: 52
+INFO 2020-03-16 04:06:29,195 judgelist Judge available after grading 52: judge1
+INFO 2020-03-16 04:07:08,933 judgelist Free judges: 1
+INFO 2020-03-16 04:07:08,933 judgelist Dispatched submission 53 to: judge1
+INFO 2020-03-16 04:07:08,950 judgehandler Submission acknowledged: 53
+INFO 2020-03-16 04:07:11,354 judgehandler judge1: Submission generated compiler messages: 53
+INFO 2020-03-16 04:07:11,410 judgehandler judge1: Grading has begun on: 53
+INFO 2020-03-16 04:07:12,039 judgehandler judge1: 1 test case(s) completed on: 53
+INFO 2020-03-16 04:07:12,762 judgehandler judge1: Grading has ended on: 53
+INFO 2020-03-16 04:07:12,762 judgelist Judge available after grading 53: judge1
+INFO 2020-03-16 04:11:38,835 judgelist Free judges: 1
+INFO 2020-03-16 04:11:38,835 judgelist Dispatched submission 54 to: judge1
+INFO 2020-03-16 04:11:38,853 judgehandler Submission acknowledged: 54
+INFO 2020-03-16 04:11:39,737 judgehandler judge1: Submission generated compiler messages: 54
+INFO 2020-03-16 04:11:39,773 judgehandler judge1: Grading has begun on: 54
+INFO 2020-03-16 04:11:39,811 judgehandler judge1: 1 test case(s) completed on: 54
+INFO 2020-03-16 04:11:39,888 judgehandler judge1: Grading has ended on: 54
+INFO 2020-03-16 04:11:39,888 judgelist Judge available after grading 54: judge1
+INFO 2020-03-16 04:11:53,547 judgelist Free judges: 1
+INFO 2020-03-16 04:11:53,548 judgelist Dispatched submission 55 to: judge1
+INFO 2020-03-16 04:11:53,566 judgehandler Submission acknowledged: 55
+INFO 2020-03-16 04:11:54,439 judgehandler judge1: Submission generated compiler messages: 55
+INFO 2020-03-16 04:11:54,579 judgehandler judge1: Grading has begun on: 55
+INFO 2020-03-16 04:11:54,641 judgehandler judge1: 1 test case(s) completed on: 55
+INFO 2020-03-16 04:11:54,778 judgehandler judge1: Grading has ended on: 55
+INFO 2020-03-16 04:11:54,779 judgelist Judge available after grading 55: judge1
+INFO 2020-03-16 04:13:21,095 judgelist Free judges: 1
+INFO 2020-03-16 04:13:21,096 judgelist Dispatched submission 56 to: judge1
+INFO 2020-03-16 04:13:21,113 judgehandler Submission acknowledged: 56
+INFO 2020-03-16 04:13:21,365 judgehandler judge1: Submission failed to compile: 56
+INFO 2020-03-16 04:13:21,366 judgelist Judge available after grading 56: judge1
+INFO 2020-03-16 04:13:38,972 judgelist Free judges: 1
+INFO 2020-03-16 04:13:38,973 judgelist Dispatched submission 57 to: judge1
+INFO 2020-03-16 04:13:38,980 judgehandler Submission acknowledged: 57
+INFO 2020-03-16 04:13:39,209 judgehandler judge1: Submission generated compiler messages: 57
+INFO 2020-03-16 04:13:39,974 judgehandler judge1: Grading has begun on: 57
+INFO 2020-03-16 04:13:40,763 judgehandler judge1: 1 test case(s) completed on: 57
+INFO 2020-03-16 04:13:41,708 judgehandler judge1: Grading has ended on: 57
+INFO 2020-03-16 04:13:41,708 judgelist Judge available after grading 57: judge1
+INFO 2020-03-16 04:25:44,775 judgelist Free judges: 1
+INFO 2020-03-16 04:25:44,776 judgelist Dispatched submission 58 to: judge1
+INFO 2020-03-16 04:25:44,784 judgehandler Submission acknowledged: 58
+INFO 2020-03-16 04:25:46,058 judgehandler judge1: Submission generated compiler messages: 58
+INFO 2020-03-16 04:25:46,121 judgehandler judge1: Grading has begun on: 58
+INFO 2020-03-16 04:25:46,157 judgehandler judge1: 1 test case(s) completed on: 58
+INFO 2020-03-16 04:25:46,224 judgehandler judge1: Grading has ended on: 58
+INFO 2020-03-16 04:25:46,225 judgelist Judge available after grading 58: judge1
+INFO 2020-03-16 04:28:46,644 judgelist Free judges: 1
+INFO 2020-03-16 04:28:46,645 judgelist Dispatched submission 59 to: judge1
+INFO 2020-03-16 04:28:46,661 judgehandler Submission acknowledged: 59
+INFO 2020-03-16 04:28:47,484 judgehandler judge1: Submission generated compiler messages: 59
+INFO 2020-03-16 04:28:47,524 judgehandler judge1: Grading has begun on: 59
+INFO 2020-03-16 04:28:47,560 judgehandler judge1: 1 test case(s) completed on: 59
+INFO 2020-03-16 04:28:47,696 judgehandler judge1: Grading has ended on: 59
+INFO 2020-03-16 04:28:47,697 judgelist Judge available after grading 59: judge1
+INFO 2020-03-16 04:33:13,204 judgelist Free judges: 1
+INFO 2020-03-16 04:33:13,204 judgelist Dispatched submission 60 to: judge1
+INFO 2020-03-16 04:33:13,208 judgehandler Submission acknowledged: 60
+INFO 2020-03-16 04:33:14,148 judgehandler judge1: Submission generated compiler messages: 60
+INFO 2020-03-16 04:33:14,203 judgehandler judge1: Grading has begun on: 60
+INFO 2020-03-16 04:33:14,241 judgehandler judge1: 3 test case(s) completed on: 60
+INFO 2020-03-16 04:33:14,306 judgehandler judge1: Grading has ended on: 60
+INFO 2020-03-16 04:33:14,306 judgelist Judge available after grading 60: judge1
+INFO 2020-03-16 04:33:33,916 judgelist Free judges: 1
+INFO 2020-03-16 04:33:33,917 judgelist Dispatched submission 61 to: judge1
+INFO 2020-03-16 04:33:33,935 judgehandler Submission acknowledged: 61
+INFO 2020-03-16 04:33:34,789 judgehandler judge1: Submission generated compiler messages: 61
+INFO 2020-03-16 04:33:34,821 judgehandler judge1: Grading has begun on: 61
+INFO 2020-03-16 04:33:34,947 judgehandler judge1: 2 test case(s) completed on: 61
+INFO 2020-03-16 04:33:35,013 judgehandler judge1: 1 test case(s) completed on: 61
+INFO 2020-03-16 04:33:35,083 judgehandler judge1: Grading has ended on: 61
+INFO 2020-03-16 04:33:35,083 judgelist Judge available after grading 61: judge1
+INFO 2020-03-16 04:38:54,503 judgelist Free judges: 1
+INFO 2020-03-16 04:38:54,504 judgelist Dispatched submission 62 to: judge1
+INFO 2020-03-16 04:38:54,523 judgehandler Submission acknowledged: 62
+INFO 2020-03-16 04:38:55,380 judgehandler judge1: Submission generated compiler messages: 62
+INFO 2020-03-16 04:38:55,419 judgehandler judge1: Grading has begun on: 62
+INFO 2020-03-16 04:38:55,468 judgehandler judge1: 1 test case(s) completed on: 62
+INFO 2020-03-16 04:38:55,651 judgehandler judge1: 10 test case(s) completed on: 62
+INFO 2020-03-16 04:38:55,902 judgehandler judge1: 10 test case(s) completed on: 62
+INFO 2020-03-16 04:38:56,423 judgehandler judge1: 3 test case(s) completed on: 62
+INFO 2020-03-16 04:38:56,505 judgehandler judge1: 2 test case(s) completed on: 62
+INFO 2020-03-16 04:38:56,658 judgehandler judge1: 9 test case(s) completed on: 62
+INFO 2020-03-16 04:38:56,907 judgehandler judge1: 9 test case(s) completed on: 62
+INFO 2020-03-16 04:38:57,484 judgehandler judge1: 4 test case(s) completed on: 62
+INFO 2020-03-16 04:38:58,115 judgehandler judge1: 1 test case(s) completed on: 62
+INFO 2020-03-16 04:38:58,208 judgehandler judge1: 2 test case(s) completed on: 62
+INFO 2020-03-16 04:38:58,302 judgehandler judge1: 6 test case(s) completed on: 62
+INFO 2020-03-16 04:38:58,417 judgehandler judge1: 9 test case(s) completed on: 62
+INFO 2020-03-16 04:38:58,668 judgehandler judge1: 22 test case(s) completed on: 62
+INFO 2020-03-16 04:38:58,922 judgehandler judge1: 10 test case(s) completed on: 62
+INFO 2020-03-16 04:38:59,031 judgehandler judge1: 2 test case(s) completed on: 62
+INFO 2020-03-16 04:38:59,172 judgehandler judge1: Grading has ended on: 62
+INFO 2020-03-16 04:38:59,172 judgelist Judge available after grading 62: judge1
+INFO 2020-03-16 04:50:00,653 judgelist Free judges: 1
+INFO 2020-03-16 04:50:00,653 judgelist Dispatched submission 63 to: judge1
+INFO 2020-03-16 04:50:00,671 judgehandler Submission acknowledged: 63
+INFO 2020-03-16 04:50:01,525 judgehandler judge1: Submission generated compiler messages: 63
+INFO 2020-03-16 04:50:01,862 judgehandler judge1: Grading has begun on: 63
+INFO 2020-03-16 04:50:02,137 judgehandler judge1: 2 test case(s) completed on: 63
+INFO 2020-03-16 04:50:02,249 judgehandler judge1: 1 test case(s) completed on: 63
+INFO 2020-03-16 04:50:02,317 judgehandler judge1: 4 test case(s) completed on: 63
+INFO 2020-03-16 04:50:02,783 judgehandler judge1: 12 test case(s) completed on: 63
+INFO 2020-03-16 04:50:03,436 judgehandler judge1: 1 test case(s) completed on: 63
+INFO 2020-03-16 04:50:04,285 judgehandler judge1: 2 test case(s) completed on: 63
+INFO 2020-03-16 04:50:05,115 judgehandler judge1: 1 test case(s) completed on: 63
+INFO 2020-03-16 04:50:06,612 judgehandler judge1: 2 test case(s) completed on: 63
+INFO 2020-03-16 04:50:07,442 judgehandler judge1: 3 test case(s) completed on: 63
+INFO 2020-03-16 04:50:07,536 judgehandler judge1: 1 test case(s) completed on: 63
+INFO 2020-03-16 04:50:07,641 judgehandler judge1: 6 test case(s) completed on: 63
+INFO 2020-03-16 04:50:07,741 judgehandler judge1: 1 test case(s) completed on: 63
+INFO 2020-03-16 04:50:07,834 judgehandler judge1: 2 test case(s) completed on: 63
+INFO 2020-03-16 04:50:07,940 judgehandler judge1: 1 test case(s) completed on: 63
+INFO 2020-03-16 04:50:08,041 judgehandler judge1: 3 test case(s) completed on: 63
+INFO 2020-03-16 04:50:08,154 judgehandler judge1: 1 test case(s) completed on: 63
+INFO 2020-03-16 04:50:08,272 judgehandler judge1: 1 test case(s) completed on: 63
+INFO 2020-03-16 04:50:08,467 judgehandler judge1: 2 test case(s) completed on: 63
+INFO 2020-03-16 04:50:09,446 judgehandler judge1: 1 test case(s) completed on: 63
+INFO 2020-03-16 04:50:09,624 judgehandler judge1: 2 test case(s) completed on: 63
+INFO 2020-03-16 04:50:09,743 judgehandler judge1: 2 test case(s) completed on: 63
+INFO 2020-03-16 04:50:09,861 judgehandler judge1: 2 test case(s) completed on: 63
+INFO 2020-03-16 04:50:09,991 judgehandler judge1: 1 test case(s) completed on: 63
+INFO 2020-03-16 04:50:10,169 judgehandler judge1: 7 test case(s) completed on: 63
+INFO 2020-03-16 04:50:10,347 judgehandler judge1: 12 test case(s) completed on: 63
+INFO 2020-03-16 04:50:10,537 judgehandler judge1: 9 test case(s) completed on: 63
+INFO 2020-03-16 04:50:10,897 judgehandler judge1: 8 test case(s) completed on: 63
+INFO 2020-03-16 04:50:11,563 judgehandler judge1: 4 test case(s) completed on: 63
+INFO 2020-03-16 04:50:11,681 judgehandler judge1: 1 test case(s) completed on: 63
+INFO 2020-03-16 04:50:11,813 judgehandler judge1: 1 test case(s) completed on: 63
+INFO 2020-03-16 04:50:11,944 judgehandler judge1: 4 test case(s) completed on: 63
+INFO 2020-03-16 04:50:12,087 judgehandler judge1: Grading has ended on: 63
+INFO 2020-03-16 04:50:12,088 judgelist Judge available after grading 63: judge1
+INFO 2020-03-17 05:52:30,384 judgehandler Judge connected from: ('127.0.0.1', 43860)
+INFO 2020-03-17 05:52:30,386 judgehandler Judge authenticated: ('127.0.0.1', 43860) (judge1)
+INFO 2020-03-17 05:52:37,582 judgelist Free judges: 1
+INFO 2020-03-17 05:52:37,582 judgelist Dispatched submission 63 to: judge1
+INFO 2020-03-17 05:52:37,590 judgehandler Submission acknowledged: 63
+INFO 2020-03-17 05:52:39,371 judgehandler judge1: Submission generated compiler messages: 63
+INFO 2020-03-17 05:52:39,433 judgehandler judge1: Grading has begun on: 63
+INFO 2020-03-17 05:52:39,478 judgehandler judge1: 7 test case(s) completed on: 63
+INFO 2020-03-17 05:52:39,728 judgehandler judge1: 17 test case(s) completed on: 63
+INFO 2020-03-17 05:52:39,979 judgehandler judge1: 24 test case(s) completed on: 63
+INFO 2020-03-17 05:52:40,231 judgehandler judge1: 17 test case(s) completed on: 63
+INFO 2020-03-17 05:52:40,483 judgehandler judge1: 7 test case(s) completed on: 63
+INFO 2020-03-17 05:52:40,733 judgehandler judge1: 18 test case(s) completed on: 63
+INFO 2020-03-17 05:52:41,641 judgehandler judge1: 2 test case(s) completed on: 63
+INFO 2020-03-17 05:52:41,735 judgehandler judge1: 2 test case(s) completed on: 63
+INFO 2020-03-17 05:52:41,828 judgehandler judge1: 6 test case(s) completed on: 63
+INFO 2020-03-17 05:52:42,697 judgehandler judge1: Grading has ended on: 63
+INFO 2020-03-17 05:52:42,697 judgelist Judge available after grading 63: judge1
+INFO 2020-03-17 05:52:47,180 judgelist Free judges: 1
+INFO 2020-03-17 05:52:47,181 judgelist Dispatched submission 63 to: judge1
+INFO 2020-03-17 05:52:47,199 judgehandler Submission acknowledged: 63
+INFO 2020-03-17 05:52:48,095 judgehandler judge1: Submission generated compiler messages: 63
+INFO 2020-03-17 05:52:48,133 judgehandler judge1: Grading has begun on: 63
+INFO 2020-03-17 05:52:48,254 judgehandler judge1: 15 test case(s) completed on: 63
+INFO 2020-03-17 05:52:48,506 judgehandler judge1: 23 test case(s) completed on: 63
+INFO 2020-03-17 05:52:48,757 judgehandler judge1: 24 test case(s) completed on: 63
+INFO 2020-03-17 05:52:49,009 judgehandler judge1: 16 test case(s) completed on: 63
+INFO 2020-03-17 05:52:49,672 judgehandler judge1: 5 test case(s) completed on: 63
+INFO 2020-03-17 05:52:49,871 judgehandler judge1: 2 test case(s) completed on: 63
+INFO 2020-03-17 05:52:50,081 judgehandler judge1: 4 test case(s) completed on: 63
+INFO 2020-03-17 05:52:50,185 judgehandler judge1: 11 test case(s) completed on: 63
+INFO 2020-03-17 05:52:51,173 judgehandler judge1: Grading has ended on: 63
+INFO 2020-03-17 05:52:51,174 judgelist Judge available after grading 63: judge1
+INFO 2020-03-17 06:40:31,639 judgelist Free judges: 1
+INFO 2020-03-17 06:40:31,640 judgelist Dispatched submission 64 to: judge1
+INFO 2020-03-17 06:40:31,656 judgehandler Submission acknowledged: 64
+INFO 2020-03-17 06:40:32,523 judgehandler judge1: Submission failed to compile: 64
+INFO 2020-03-17 06:40:32,523 judgelist Judge available after grading 64: judge1
+INFO 2020-03-17 06:40:44,497 judgelist Free judges: 1
+INFO 2020-03-17 06:40:44,498 judgelist Dispatched submission 65 to: judge1
+INFO 2020-03-17 06:40:44,514 judgehandler Submission acknowledged: 65
+INFO 2020-03-17 06:40:45,380 judgehandler judge1: Submission generated compiler messages: 65
+INFO 2020-03-17 06:40:45,422 judgehandler judge1: Grading has begun on: 65
+INFO 2020-03-17 06:40:45,460 judgehandler judge1: 3 test case(s) completed on: 65
+INFO 2020-03-17 06:40:45,669 judgehandler judge1: 12 test case(s) completed on: 65
+INFO 2020-03-17 06:40:45,920 judgehandler judge1: 24 test case(s) completed on: 65
+INFO 2020-03-17 06:40:46,546 judgehandler judge1: 3 test case(s) completed on: 65
+INFO 2020-03-17 06:40:47,294 judgehandler judge1: 3 test case(s) completed on: 65
+INFO 2020-03-17 06:40:48,126 judgehandler judge1: 2 test case(s) completed on: 65
+INFO 2020-03-17 06:40:48,213 judgehandler judge1: 1 test case(s) completed on: 65
+INFO 2020-03-17 06:40:48,306 judgehandler judge1: 7 test case(s) completed on: 65
+INFO 2020-03-17 06:40:48,400 judgehandler judge1: 1 test case(s) completed on: 65
+INFO 2020-03-17 06:40:48,505 judgehandler judge1: 2 test case(s) completed on: 65
+INFO 2020-03-17 06:40:48,668 judgehandler judge1: 2 test case(s) completed on: 65
+INFO 2020-03-17 06:40:48,772 judgehandler judge1: 13 test case(s) completed on: 65
+INFO 2020-03-17 06:40:48,924 judgehandler judge1: 9 test case(s) completed on: 65
+INFO 2020-03-17 06:40:49,083 judgehandler judge1: 12 test case(s) completed on: 65
+INFO 2020-03-17 06:40:49,198 judgehandler judge1: 6 test case(s) completed on: 65
+INFO 2020-03-17 06:40:49,292 judgehandler judge1: Grading has ended on: 65
+INFO 2020-03-17 06:40:49,292 judgelist Judge available after grading 65: judge1
+INFO 2020-03-17 06:41:14,985 judgelist Free judges: 1
+INFO 2020-03-17 06:41:14,986 judgelist Dispatched submission 66 to: judge1
+INFO 2020-03-17 06:41:15,002 judgehandler Submission acknowledged: 66
+INFO 2020-03-17 06:41:15,933 judgehandler judge1: Submission generated compiler messages: 66
+INFO 2020-03-17 06:41:15,987 judgehandler judge1: Grading has begun on: 66
+INFO 2020-03-17 06:41:16,732 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:17,484 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:18,485 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:19,237 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:19,988 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:20,739 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:21,490 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:22,241 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:22,992 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:23,744 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:24,746 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:25,497 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:26,537 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:26,999 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:27,750 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:28,502 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:29,253 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:30,004 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:30,756 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:31,507 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:32,259 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:33,260 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:34,011 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:34,763 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:35,514 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:36,783 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:37,016 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:37,767 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:38,519 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:39,270 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:40,274 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:41,220 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:41,523 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:42,275 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:43,026 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:43,777 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:44,761 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:45,279 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:46,031 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:46,782 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:47,793 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:48,284 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:49,035 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:49,786 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:50,537 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:51,539 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:52,290 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:53,041 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:54,012 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:54,667 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:56,598 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:57,148 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:57,336 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:57,799 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:58,550 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:41:59,301 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:00,052 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:00,803 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:01,554 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:02,305 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:03,056 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:03,807 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:04,559 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:05,560 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:07,232 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:08,571 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:08,748 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:08,868 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:09,316 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:10,067 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:10,818 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:11,569 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:12,523 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:13,071 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:14,073 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:14,824 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:15,575 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:16,519 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:17,077 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:17,885 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:19,195 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:19,483 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:20,671 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:21,007 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:21,584 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:22,702 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:23,337 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:24,103 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:24,839 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:25,590 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:27,274 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:28,934 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:30,623 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:31,010 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:31,222 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:31,346 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:31,465 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:32,101 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:33,421 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:33,600 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 06:42:33,778 judgehandler judge1: Grading has ended on: 66
+INFO 2020-03-17 06:42:33,778 judgelist Judge available after grading 66: judge1
+INFO 2020-03-17 06:43:15,398 judgelist Free judges: 1
+INFO 2020-03-17 06:43:15,399 judgelist Dispatched submission 67 to: judge1
+INFO 2020-03-17 06:43:15,416 judgehandler Submission acknowledged: 67
+INFO 2020-03-17 06:43:16,291 judgehandler judge1: Submission generated compiler messages: 67
+INFO 2020-03-17 06:43:16,335 judgehandler judge1: Grading has begun on: 67
+INFO 2020-03-17 06:43:18,415 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:43:19,417 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:43:20,418 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:43:22,421 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:43:24,423 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:43:25,675 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:43:28,800 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:43:29,681 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:43:30,682 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:43:31,684 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:43:33,686 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:43:34,868 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:43:37,161 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:43:37,246 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:43:38,694 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:43:40,696 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:43:43,158 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:43:44,952 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:43:46,955 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:43:48,957 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:43:50,960 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:43:52,963 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:43:54,965 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:43:56,968 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:43:57,969 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:43:59,972 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:00,974 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:02,976 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:05,229 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:06,231 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:08,234 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:09,235 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:11,238 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:13,241 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:14,242 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:16,245 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:17,246 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:19,249 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:21,502 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:22,504 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:23,505 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:25,508 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:27,511 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:29,513 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:31,516 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:32,518 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:34,520 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:35,522 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:36,523 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:37,775 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:38,777 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:40,780 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:42,546 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:43,527 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:44,256 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:44,786 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:46,840 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:48,436 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:49,104 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:50,794 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:51,832 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:52,797 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:55,050 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:57,053 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:44:59,055 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:00,057 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:01,058 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:02,066 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:03,061 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:05,064 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:06,794 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:07,163 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:08,069 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:10,071 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:12,884 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:13,325 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:14,327 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:16,330 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:17,514 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:19,334 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:20,623 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:21,528 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:22,338 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:23,339 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:25,342 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:26,496 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:27,345 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:29,348 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:30,351 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:31,602 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:33,605 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:35,608 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:37,802 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:38,612 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:39,614 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:41,616 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:42,618 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:44,300 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:45,622 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:46,592 judgehandler judge1: 1 test case(s) completed on: 67
+INFO 2020-03-17 06:45:46,688 judgehandler judge1: Grading has ended on: 67
+INFO 2020-03-17 06:45:46,688 judgelist Judge available after grading 67: judge1
+INFO 2020-03-17 08:13:04,323 judgelist Free judges: 1
+INFO 2020-03-17 08:13:04,324 judgelist Dispatched submission 63 to: judge1
+INFO 2020-03-17 08:13:04,341 judgehandler Submission acknowledged: 63
+INFO 2020-03-17 08:13:05,259 judgehandler judge1: Submission generated compiler messages: 63
+INFO 2020-03-17 08:13:05,297 judgehandler judge1: Grading has begun on: 63
+INFO 2020-03-17 08:13:05,490 judgehandler judge1: 20 test case(s) completed on: 63
+INFO 2020-03-17 08:13:05,740 judgehandler judge1: 12 test case(s) completed on: 63
+INFO 2020-03-17 08:13:05,993 judgehandler judge1: 18 test case(s) completed on: 63
+INFO 2020-03-17 08:13:06,246 judgehandler judge1: 10 test case(s) completed on: 63
+INFO 2020-03-17 08:13:06,497 judgehandler judge1: 7 test case(s) completed on: 63
+INFO 2020-03-17 08:13:06,748 judgehandler judge1: 13 test case(s) completed on: 63
+INFO 2020-03-17 08:13:06,999 judgehandler judge1: 17 test case(s) completed on: 63
+INFO 2020-03-17 08:13:07,100 judgehandler judge1: 3 test case(s) completed on: 63
+INFO 2020-03-17 08:13:07,195 judgehandler judge1: Grading has ended on: 63
+INFO 2020-03-17 08:13:07,195 judgelist Judge available after grading 63: judge1
+INFO 2020-03-17 08:24:22,552 judgelist Free judges: 1
+INFO 2020-03-17 08:24:22,553 judgelist Dispatched submission 66 to: judge1
+INFO 2020-03-17 08:24:22,570 judgehandler Submission acknowledged: 66
+INFO 2020-03-17 08:24:23,469 judgehandler judge1: Submission generated compiler messages: 66
+INFO 2020-03-17 08:24:23,513 judgehandler judge1: Grading has begun on: 66
+INFO 2020-03-17 08:24:24,456 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:25,208 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:25,958 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:26,710 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:27,461 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:28,212 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:28,963 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:29,714 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:30,466 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:32,967 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:34,755 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:37,701 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:38,462 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:38,699 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:38,895 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:39,823 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:39,953 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:40,072 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:40,190 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:40,309 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:40,737 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:41,488 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:42,498 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:42,990 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:43,803 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:44,493 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:45,474 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:45,995 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:48,833 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:49,522 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:50,522 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:51,445 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:52,724 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:54,554 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:57,735 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:59,334 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:59,489 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:59,650 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:24:59,794 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:00,445 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:00,918 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:01,033 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:01,128 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:01,221 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:01,373 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:01,467 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:01,769 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:02,520 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:03,779 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:04,565 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:05,867 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:06,412 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:06,903 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:07,413 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:07,779 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:08,780 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:09,618 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:10,282 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:11,281 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:12,546 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:12,689 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:13,287 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:15,030 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:16,166 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:16,597 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:16,792 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:17,543 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:18,545 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:19,296 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:20,887 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:20,982 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:21,550 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:22,495 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:23,691 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:23,951 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:24,554 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:25,556 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:26,307 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:27,058 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:27,809 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:28,560 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:29,311 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:30,573 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:30,814 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:31,565 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:32,316 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:33,067 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:34,918 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:35,862 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:37,273 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:38,821 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:39,952 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:41,092 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:42,292 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:43,096 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:43,911 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:44,383 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:44,502 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:44,708 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:44,826 judgehandler judge1: 1 test case(s) completed on: 66
+INFO 2020-03-17 08:25:44,944 judgehandler judge1: Grading has ended on: 66
+INFO 2020-03-17 08:25:44,945 judgelist Judge available after grading 66: judge1
+INFO 2020-03-17 09:36:18,687 judgehandler judge1: Updated problem list
+INFO 2020-03-17 09:36:57,505 judgehandler judge1: Updated problem list
+INFO 2020-03-17 09:53:24,844 judgehandler judge1: Updated problem list
+INFO 2020-03-17 09:53:45,291 judgehandler judge1: Updated problem list
+INFO 2020-03-17 09:53:45,293 judgehandler judge1: Updated problem list
+INFO 2020-03-17 09:55:08,413 judgelist Free judges: 1
+INFO 2020-03-17 09:55:08,414 judgelist Dispatched submission 68 to: judge1
+INFO 2020-03-17 09:55:08,431 judgehandler Submission acknowledged: 68
+INFO 2020-03-17 09:55:08,495 judgehandler judge1: Grading has begun on: 68
+INFO 2020-03-17 09:55:08,540 judgehandler judge1: 100 test case(s) completed on: 68
+INFO 2020-03-17 09:55:08,739 judgehandler judge1: Grading has ended on: 68
+INFO 2020-03-17 09:55:08,739 judgelist Judge available after grading 68: judge1
+INFO 2020-03-17 10:02:36,565 judgelist Free judges: 1
+INFO 2020-03-17 10:02:36,566 judgelist Dispatched submission 69 to: judge1
+INFO 2020-03-17 10:02:36,582 judgehandler Submission acknowledged: 69
+INFO 2020-03-17 10:02:36,645 judgehandler judge1: Grading has begun on: 69
+INFO 2020-03-17 10:02:36,799 judgehandler judge1: 4 test case(s) completed on: 69
+INFO 2020-03-17 10:02:37,049 judgehandler judge1: 7 test case(s) completed on: 69
+INFO 2020-03-17 10:02:37,300 judgehandler judge1: 7 test case(s) completed on: 69
+INFO 2020-03-17 10:02:37,551 judgehandler judge1: 7 test case(s) completed on: 69
+INFO 2020-03-17 10:02:37,801 judgehandler judge1: 7 test case(s) completed on: 69
+INFO 2020-03-17 10:02:38,052 judgehandler judge1: 7 test case(s) completed on: 69
+INFO 2020-03-17 10:02:38,302 judgehandler judge1: 7 test case(s) completed on: 69
+INFO 2020-03-17 10:02:38,553 judgehandler judge1: 7 test case(s) completed on: 69
+INFO 2020-03-17 10:02:38,803 judgehandler judge1: 7 test case(s) completed on: 69
+INFO 2020-03-17 10:02:39,098 judgehandler judge1: 4 test case(s) completed on: 69
+INFO 2020-03-17 10:02:39,811 judgehandler judge1: 2 test case(s) completed on: 69
+INFO 2020-03-17 10:02:39,994 judgehandler judge1: 1 test case(s) completed on: 69
+INFO 2020-03-17 10:02:40,088 judgehandler judge1: 2 test case(s) completed on: 69
+INFO 2020-03-17 10:02:40,188 judgehandler judge1: 6 test case(s) completed on: 69
+INFO 2020-03-17 10:02:40,431 judgehandler judge1: 8 test case(s) completed on: 69
+INFO 2020-03-17 10:02:40,561 judgehandler judge1: 6 test case(s) completed on: 69
+INFO 2020-03-17 10:02:40,812 judgehandler judge1: 7 test case(s) completed on: 69
+INFO 2020-03-17 10:02:40,939 judgehandler judge1: 4 test case(s) completed on: 69
+INFO 2020-03-17 10:02:41,119 judgehandler judge1: Grading has ended on: 69
+INFO 2020-03-17 10:02:41,120 judgelist Judge available after grading 69: judge1
+INFO 2020-03-17 10:06:16,366 judgelist Free judges: 1
+INFO 2020-03-17 10:06:16,366 judgelist Dispatched submission 70 to: judge1
+INFO 2020-03-17 10:06:16,383 judgehandler Submission acknowledged: 70
+INFO 2020-03-17 10:06:16,445 judgehandler judge1: Grading has begun on: 70
+INFO 2020-03-17 10:06:16,499 judgehandler judge1: 100 test case(s) completed on: 70
+INFO 2020-03-17 10:06:16,727 judgehandler judge1: Grading has ended on: 70
+INFO 2020-03-17 10:06:16,727 judgelist Judge available after grading 70: judge1
+INFO 2020-03-17 10:19:36,305 judgelist Free judges: 1
+INFO 2020-03-17 10:19:36,306 judgelist Dispatched submission 71 to: judge1
+INFO 2020-03-17 10:19:36,323 judgehandler Submission acknowledged: 71
+INFO 2020-03-17 10:19:36,381 judgehandler judge1: Grading has begun on: 71
+INFO 2020-03-17 10:19:36,495 judgehandler judge1: 2 test case(s) completed on: 71
+INFO 2020-03-17 10:19:36,746 judgehandler judge1: 4 test case(s) completed on: 71
+INFO 2020-03-17 10:19:37,500 judgehandler judge1: 2 test case(s) completed on: 71
+INFO 2020-03-17 10:19:38,294 judgehandler judge1: 1 test case(s) completed on: 71
+INFO 2020-03-17 10:19:39,134 judgehandler judge1: 3 test case(s) completed on: 71
+INFO 2020-03-17 10:19:39,738 judgehandler judge1: 3 test case(s) completed on: 71
+INFO 2020-03-17 10:19:39,819 judgehandler judge1: 3 test case(s) completed on: 71
+INFO 2020-03-17 10:19:39,913 judgehandler judge1: 2 test case(s) completed on: 71
+INFO 2020-03-17 10:19:40,006 judgehandler judge1: 1 test case(s) completed on: 71
+INFO 2020-03-17 10:19:40,100 judgehandler judge1: 2 test case(s) completed on: 71
+INFO 2020-03-17 10:19:40,194 judgehandler judge1: 1 test case(s) completed on: 71
+INFO 2020-03-17 10:19:40,288 judgehandler judge1: 1 test case(s) completed on: 71
+INFO 2020-03-17 10:19:40,393 judgehandler judge1: 1 test case(s) completed on: 71
+INFO 2020-03-17 10:19:40,546 judgehandler judge1: 7 test case(s) completed on: 71
+INFO 2020-03-17 10:19:40,789 judgehandler judge1: 7 test case(s) completed on: 71
+INFO 2020-03-17 10:19:40,888 judgehandler judge1: 7 test case(s) completed on: 71
+INFO 2020-03-17 10:19:40,988 judgehandler judge1: 7 test case(s) completed on: 71
+INFO 2020-03-17 10:19:41,095 judgehandler judge1: 7 test case(s) completed on: 71
+INFO 2020-03-17 10:19:42,010 judgehandler judge1: 5 test case(s) completed on: 71
+INFO 2020-03-17 10:19:42,330 judgehandler judge1: 2 test case(s) completed on: 71
+INFO 2020-03-17 10:19:42,509 judgehandler judge1: 1 test case(s) completed on: 71
+INFO 2020-03-17 10:19:42,687 judgehandler judge1: 1 test case(s) completed on: 71
+INFO 2020-03-17 10:19:42,806 judgehandler judge1: 7 test case(s) completed on: 71
+INFO 2020-03-17 10:19:42,943 judgehandler judge1: 8 test case(s) completed on: 71
+INFO 2020-03-17 10:19:43,081 judgehandler judge1: 7 test case(s) completed on: 71
+INFO 2020-03-17 10:19:43,211 judgehandler judge1: 7 test case(s) completed on: 71
+INFO 2020-03-17 10:19:44,145 judgehandler judge1: 1 test case(s) completed on: 71
+INFO 2020-03-17 10:19:44,329 judgehandler judge1: Grading has ended on: 71
+INFO 2020-03-17 10:19:44,329 judgelist Judge available after grading 71: judge1
+INFO 2020-03-17 10:20:03,524 judgelist Free judges: 1
+INFO 2020-03-17 10:20:03,524 judgelist Dispatched submission 72 to: judge1
+INFO 2020-03-17 10:20:03,543 judgehandler Submission acknowledged: 72
+INFO 2020-03-17 10:20:04,559 judgehandler judge1: Grading has begun on: 72
+INFO 2020-03-17 10:20:04,980 judgehandler judge1: 100 test case(s) completed on: 72
+INFO 2020-03-17 10:20:06,063 judgehandler judge1: Grading has ended on: 72
+INFO 2020-03-17 10:20:06,064 judgelist Judge available after grading 72: judge1
+INFO 2020-03-17 10:39:42,497 judgehandler judge1: Updated problem list
+INFO 2020-03-17 10:40:06,623 judgelist Free judges: 1
+INFO 2020-03-17 10:40:06,624 judgelist Dispatched submission 73 to: judge1
+INFO 2020-03-17 10:40:06,641 judgehandler Submission acknowledged: 73
+INFO 2020-03-17 10:40:07,021 judgehandler judge1: Grading has begun on: 73
+INFO 2020-03-17 10:40:07,661 judgehandler judge1: 1 test case(s) completed on: 73
+INFO 2020-03-17 10:40:07,760 judgehandler judge1: 2 test case(s) completed on: 73
+INFO 2020-03-17 10:40:07,898 judgehandler judge1: 2 test case(s) completed on: 73
+INFO 2020-03-17 10:40:07,967 judgehandler judge1: 1 test case(s) completed on: 73
+INFO 2020-03-17 10:40:08,036 judgehandler judge1: 2 test case(s) completed on: 73
+INFO 2020-03-17 10:40:08,105 judgehandler judge1: 7 test case(s) completed on: 73
+INFO 2020-03-17 10:40:08,641 judgehandler judge1: 7 test case(s) completed on: 73
+INFO 2020-03-17 10:40:10,832 judgehandler judge1: 2 test case(s) completed on: 73
+INFO 2020-03-17 10:40:11,113 judgehandler judge1: 1 test case(s) completed on: 73
+INFO 2020-03-17 10:40:11,207 judgehandler judge1: 1 test case(s) completed on: 73
+INFO 2020-03-17 10:40:11,301 judgehandler judge1: 1 test case(s) completed on: 73
+INFO 2020-03-17 10:40:11,395 judgehandler judge1: 1 test case(s) completed on: 73
+INFO 2020-03-17 10:40:11,508 judgehandler judge1: 1 test case(s) completed on: 73
+INFO 2020-03-17 10:40:11,626 judgehandler judge1: 1 test case(s) completed on: 73
+INFO 2020-03-17 10:40:11,745 judgehandler judge1: 5 test case(s) completed on: 73
+INFO 2020-03-17 10:40:11,864 judgehandler judge1: 6 test case(s) completed on: 73
+INFO 2020-03-17 10:40:12,042 judgehandler judge1: 7 test case(s) completed on: 73
+INFO 2020-03-17 10:40:13,078 judgehandler judge1: 7 test case(s) completed on: 73
+INFO 2020-03-17 10:40:13,256 judgehandler judge1: 7 test case(s) completed on: 73
+INFO 2020-03-17 10:40:13,374 judgehandler judge1: 7 test case(s) completed on: 73
+INFO 2020-03-17 10:40:13,494 judgehandler judge1: 1 test case(s) completed on: 73
+INFO 2020-03-17 10:40:13,612 judgehandler judge1: 7 test case(s) completed on: 73
+INFO 2020-03-17 10:40:13,754 judgehandler judge1: 7 test case(s) completed on: 73
+INFO 2020-03-17 10:40:13,898 judgehandler judge1: 7 test case(s) completed on: 73
+INFO 2020-03-17 10:40:14,186 judgehandler judge1: 7 test case(s) completed on: 73
+INFO 2020-03-17 10:40:15,061 judgehandler judge1: 2 test case(s) completed on: 73
+INFO 2020-03-17 10:40:15,343 judgehandler judge1: Grading has ended on: 73
+INFO 2020-03-17 10:40:15,344 judgelist Judge available after grading 73: judge1
+INFO 2020-03-17 10:41:31,866 judgehandler judge1: Updated problem list
+INFO 2020-03-17 11:45:21,903 judgehandler judge1: Updated problem list
+INFO 2020-03-17 11:46:04,956 judgehandler judge1: Updated problem list
+INFO 2020-03-17 12:03:42,222 judgehandler judge1: Updated problem list
+INFO 2020-03-17 12:04:10,459 judgehandler judge1: Updated problem list
+INFO 2020-03-17 12:06:29,965 judgehandler judge1: Updated problem list
+INFO 2020-03-17 12:06:29,967 judgehandler judge1: Updated problem list
+INFO 2020-03-17 12:06:51,732 judgehandler judge1: Updated problem list
+INFO 2020-03-17 12:08:18,391 judgehandler judge1: Updated problem list
+INFO 2020-03-17 12:08:33,491 judgehandler judge1: Updated problem list
+INFO 2020-03-17 12:08:40,406 judgehandler judge1: Updated problem list
+INFO 2020-03-17 12:08:47,975 judgehandler judge1: Updated problem list
+INFO 2020-03-17 12:17:40,345 judgehandler judge1: Updated problem list
+INFO 2020-03-17 12:50:27,823 judgehandler judge1: Updated problem list
+INFO 2020-03-17 12:50:50,494 judgehandler judge1: Updated problem list
+INFO 2020-03-17 13:03:40,569 judgehandler judge1: Updated problem list
+INFO 2020-03-17 13:03:40,716 judgehandler judge1: Updated problem list
+INFO 2020-03-17 13:04:09,882 judgehandler judge1: Updated problem list
+INFO 2020-03-17 13:04:22,381 judgehandler judge1: Updated problem list
+INFO 2020-03-17 13:07:13,538 judgehandler judge1: Updated problem list
+INFO 2020-03-17 13:11:12,675 judgehandler Judge disconnected from: ('127.0.0.1', 43860)
+INFO 2020-03-18 00:38:16,911 judgehandler Judge connected from: ('127.0.0.1', 44088)
+INFO 2020-03-18 00:38:16,916 judgehandler Judge authenticated: ('127.0.0.1', 44088) (judge1)
+INFO 2020-03-18 00:38:35,323 judgehandler Judge disconnected from: ('127.0.0.1', 44088)
+INFO 2020-03-18 00:39:04,281 judgehandler Judge connected from: ('127.0.0.1', 44094)
+INFO 2020-03-18 00:39:04,283 judgehandler Judge authenticated: ('127.0.0.1', 44094) (judge1)
+INFO 2020-03-18 00:54:55,825 judgelist Free judges: 1
+INFO 2020-03-18 00:54:55,929 judgelist Dispatched submission 73 to: judge1
+INFO 2020-03-18 00:54:55,978 judgehandler Submission acknowledged: 73
+INFO 2020-03-18 00:54:56,152 judgehandler judge1: Grading has begun on: 73
+ERROR 2020-03-18 00:54:56,416 judgehandler Judge judge1 failed while handling submission 73
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 164, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, meta, report=report)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 116, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 208, in grade_cases
+    result = grader.grade(case)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 41, in grade
+    check = self.check_result(case, result)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 90, in check_result
+    checker = case.checker()
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/problem.py", line 345, in checker
+    checker = self.problem.load_checker(name)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/problem.py", line 152, in load_checker
+    self._checkers[name] = checker = load_module_from_file(os.path.join(get_problem_root(self.id), name))
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/utils/module.py", line 18, in load_module_from_file
+    return load_module(name, f.read(), os.path.abspath(filename))
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/utils/module.py", line 9, in load_module
+    exec(compile(code, filename or '<string>', 'exec'), mod.__dict__)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/gen.cpp", line 2
+    using namespace std;
+                  ^
+SyntaxError: invalid syntax
+
+INFO 2020-03-18 00:54:56,553 judgelist Judge available after grading 73: judge1
+INFO 2020-03-18 01:30:43,493 judgehandler judge1: Updated problem list
+INFO 2020-03-18 01:30:43,505 judgehandler judge1: Updated problem list
+INFO 2020-03-18 01:39:10,350 judgehandler judge1: Updated problem list
+INFO 2020-03-18 01:39:14,368 judgehandler judge1: Updated problem list
+INFO 2020-03-18 01:41:11,219 judgehandler judge1: Updated problem list
+INFO 2020-03-18 01:42:09,971 judgehandler judge1: Updated problem list
+INFO 2020-03-18 01:42:56,719 judgehandler judge1: Updated problem list
+INFO 2020-03-18 01:43:30,619 judgehandler judge1: Updated problem list
+INFO 2020-03-18 01:53:02,997 judgehandler judge1: Updated problem list
+INFO 2020-03-18 01:53:03,058 judgehandler judge1: Updated problem list
+INFO 2020-03-18 01:53:07,683 judgehandler judge1: Updated problem list
+INFO 2020-03-18 01:53:07,946 judgehandler judge1: Updated problem list
+INFO 2020-03-18 01:53:40,990 judgehandler judge1: Updated problem list
+INFO 2020-03-18 01:53:41,025 judgehandler judge1: Updated problem list
+INFO 2020-03-18 01:54:36,669 judgehandler judge1: Updated problem list
+INFO 2020-03-18 01:54:36,704 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:07:13,611 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:07:13,617 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:07:13,645 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:07:13,649 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:08:36,734 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:08:36,739 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:08:40,648 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:08:51,863 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:08:51,898 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:08:56,615 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:08:56,632 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:08:56,638 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:08:56,684 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:08:56,688 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:09:21,586 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:09:21,591 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:09:21,619 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:09:21,624 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:09:26,464 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:09:26,473 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:09:26,481 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:09:26,488 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:09:28,768 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:09:28,802 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:10:13,209 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:10:13,245 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:10:13,251 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:12:07,825 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:12:08,036 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:15:15,183 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:15:15,304 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:15:15,309 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:15:15,339 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:15:54,882 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:15:55,024 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:15:55,029 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:16:08,474 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:16:08,620 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:16:08,626 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:19:42,123 judgelist Free judges: 1
+INFO 2020-03-18 02:19:42,123 judgelist Dispatched submission 74 to: judge1
+INFO 2020-03-18 02:19:42,142 judgehandler Submission acknowledged: 74
+INFO 2020-03-18 02:19:45,293 judgehandler judge1: Submission generated compiler messages: 74
+INFO 2020-03-18 02:19:45,342 judgehandler judge1: Grading has begun on: 74
+INFO 2020-03-18 02:19:45,393 judgehandler judge1: 2 test case(s) completed on: 74
+INFO 2020-03-18 02:19:45,483 judgehandler judge1: Grading has ended on: 74
+INFO 2020-03-18 02:19:45,483 judgelist Judge available after grading 74: judge1
+INFO 2020-03-18 02:19:59,053 judgelist Free judges: 1
+INFO 2020-03-18 02:19:59,054 judgelist Dispatched submission 75 to: judge1
+INFO 2020-03-18 02:19:59,070 judgehandler Submission acknowledged: 75
+INFO 2020-03-18 02:20:00,675 judgehandler judge1: Submission generated compiler messages: 75
+INFO 2020-03-18 02:20:00,718 judgehandler judge1: Grading has begun on: 75
+INFO 2020-03-18 02:20:00,756 judgehandler judge1: 2 test case(s) completed on: 75
+INFO 2020-03-18 02:20:00,851 judgehandler judge1: Grading has ended on: 75
+INFO 2020-03-18 02:20:00,852 judgelist Judge available after grading 75: judge1
+INFO 2020-03-18 02:20:16,082 judgelist Free judges: 1
+INFO 2020-03-18 02:20:16,082 judgelist Dispatched submission 76 to: judge1
+INFO 2020-03-18 02:20:16,136 judgehandler Submission acknowledged: 76
+INFO 2020-03-18 02:20:17,741 judgehandler judge1: Submission generated compiler messages: 76
+INFO 2020-03-18 02:20:17,781 judgehandler judge1: Grading has begun on: 76
+INFO 2020-03-18 02:20:17,816 judgehandler judge1: 2 test case(s) completed on: 76
+INFO 2020-03-18 02:20:17,884 judgehandler judge1: Grading has ended on: 76
+INFO 2020-03-18 02:20:17,884 judgelist Judge available after grading 76: judge1
+INFO 2020-03-18 02:20:36,288 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:20:36,322 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:20:36,328 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:20:57,257 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:20:57,263 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:20:57,303 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:20:57,310 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:21:12,803 judgelist Free judges: 1
+INFO 2020-03-18 02:21:12,803 judgelist Dispatched submission 77 to: judge1
+INFO 2020-03-18 02:21:12,821 judgehandler Submission acknowledged: 77
+INFO 2020-03-18 02:21:14,250 judgehandler judge1: Submission generated compiler messages: 77
+INFO 2020-03-18 02:21:14,309 judgehandler judge1: Grading has begun on: 77
+ERROR 2020-03-18 02:21:14,360 judgehandler Judge judge1 failed while handling submission 77
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/problem.py", line 345, in checker
+    checker = self.problem.load_checker(name)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/problem.py", line 152, in load_checker
+    self._checkers[name] = checker = load_module_from_file(os.path.join(get_problem_root(self.id), name))
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/utils/module.py", line 17, in load_module_from_file
+    with open(filename) as f:
+FileNotFoundError: [Errno 2] No such file or directory: '/home/cuom1999/DMOJ/problems/hinhvuong2/hinhvuong2/cppvalidator.py'
+
+During handling of the above exception, another exception occurred:
+
+Traceback (most recent call last):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 164, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, meta, report=report)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 116, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 208, in grade_cases
+    result = grader.grade(case)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 41, in grade
+    check = self.check_result(case, result)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 90, in check_result
+    checker = case.checker()
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/problem.py", line 347, in checker
+    raise InvalidInitException('checker module path does not exist: %s' % name)
+dmoj.config.InvalidInitException: checker module path does not exist: hinhvuong2/cppvalidator.py
+
+INFO 2020-03-18 02:21:14,386 judgelist Judge available after grading 77: judge1
+INFO 2020-03-18 02:22:04,950 judgelist Free judges: 1
+INFO 2020-03-18 02:22:04,951 judgelist Dispatched submission 77 to: judge1
+INFO 2020-03-18 02:22:04,961 judgehandler Submission acknowledged: 77
+INFO 2020-03-18 02:22:06,802 judgehandler judge1: Submission generated compiler messages: 77
+INFO 2020-03-18 02:22:07,224 judgehandler judge1: Grading has begun on: 77
+ERROR 2020-03-18 02:22:07,272 judgehandler Judge judge1 failed while handling submission 77
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/problem.py", line 345, in checker
+    checker = self.problem.load_checker(name)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/problem.py", line 152, in load_checker
+    self._checkers[name] = checker = load_module_from_file(os.path.join(get_problem_root(self.id), name))
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/utils/module.py", line 17, in load_module_from_file
+    with open(filename) as f:
+FileNotFoundError: [Errno 2] No such file or directory: '/home/cuom1999/DMOJ/problems/hinhvuong2/hinhvuong2/cppvalidator.py'
+
+During handling of the above exception, another exception occurred:
+
+Traceback (most recent call last):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 164, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, meta, report=report)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 116, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 208, in grade_cases
+    result = grader.grade(case)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 41, in grade
+    check = self.check_result(case, result)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 90, in check_result
+    checker = case.checker()
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/problem.py", line 347, in checker
+    raise InvalidInitException('checker module path does not exist: %s' % name)
+dmoj.config.InvalidInitException: checker module path does not exist: hinhvuong2/cppvalidator.py
+
+INFO 2020-03-18 02:22:07,295 judgelist Judge available after grading 77: judge1
+INFO 2020-03-18 02:22:20,190 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:22:20,196 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:22:20,223 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:22:20,229 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:22:36,521 judgelist Free judges: 1
+INFO 2020-03-18 02:22:36,521 judgelist Dispatched submission 77 to: judge1
+INFO 2020-03-18 02:22:36,535 judgehandler Submission acknowledged: 77
+INFO 2020-03-18 02:22:38,220 judgehandler judge1: Submission generated compiler messages: 77
+INFO 2020-03-18 02:22:39,160 judgehandler judge1: Grading has begun on: 77
+ERROR 2020-03-18 02:22:40,105 judgehandler Judge judge1 failed while handling submission 77
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 164, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, meta, report=report)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 116, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 208, in grade_cases
+    result = grader.grade(case)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 41, in grade
+    check = self.check_result(case, result)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 90, in check_result
+    checker = case.checker()
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/problem.py", line 345, in checker
+    checker = self.problem.load_checker(name)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/problem.py", line 152, in load_checker
+    self._checkers[name] = checker = load_module_from_file(os.path.join(get_problem_root(self.id), name))
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/utils/module.py", line 18, in load_module_from_file
+    return load_module(name, f.read(), os.path.abspath(filename))
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/utils/module.py", line 9, in load_module
+    exec(compile(code, filename or '<string>', 'exec'), mod.__dict__)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 2, in <module>
+    from dmoj.conf import settings
+ModuleNotFoundError: No module named 'dmoj.conf'
+
+INFO 2020-03-18 02:22:40,130 judgelist Judge available after grading 77: judge1
+INFO 2020-03-18 02:26:11,592 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:26:11,625 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:27:38,527 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:28:45,294 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:28:45,330 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:28:48,631 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:28:48,637 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:28:48,676 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:28:48,683 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:29:27,431 judgelist Free judges: 1
+INFO 2020-03-18 02:29:27,431 judgelist Dispatched submission 77 to: judge1
+INFO 2020-03-18 02:29:27,449 judgehandler Submission acknowledged: 77
+INFO 2020-03-18 02:29:29,154 judgehandler judge1: Submission generated compiler messages: 77
+INFO 2020-03-18 02:29:30,105 judgehandler judge1: Grading has begun on: 77
+ERROR 2020-03-18 02:29:30,245 judgehandler Judge judge1 failed while handling submission 77
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 164, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, meta, report=report)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 116, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 208, in grade_cases
+    result = grader.grade(case)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 41, in grade
+    check = self.check_result(case, result)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 90, in check_result
+    checker = case.checker()
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/problem.py", line 345, in checker
+    checker = self.problem.load_checker(name)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/problem.py", line 152, in load_checker
+    self._checkers[name] = checker = load_module_from_file(os.path.join(get_problem_root(self.id), name))
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/utils/module.py", line 18, in load_module_from_file
+    return load_module(name, f.read(), os.path.abspath(filename))
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/utils/module.py", line 9, in load_module
+    exec(compile(code, filename or '<string>', 'exec'), mod.__dict__)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 2
+    from dmoj.judgeenv get_problem_root
+                                      ^
+SyntaxError: invalid syntax
+
+INFO 2020-03-18 02:29:30,290 judgelist Judge available after grading 77: judge1
+INFO 2020-03-18 02:29:51,045 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:29:51,079 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:29:51,084 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:29:55,836 judgelist Free judges: 1
+INFO 2020-03-18 02:29:55,836 judgelist Dispatched submission 77 to: judge1
+INFO 2020-03-18 02:29:55,905 judgehandler Submission acknowledged: 77
+INFO 2020-03-18 02:29:57,610 judgehandler judge1: Submission generated compiler messages: 77
+INFO 2020-03-18 02:29:57,645 judgehandler judge1: Grading has begun on: 77
+ERROR 2020-03-18 02:29:59,357 judgehandler Judge judge1 failed while handling submission 77
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 164, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, meta, report=report)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 116, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 208, in grade_cases
+    result = grader.grade(case)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 41, in grade
+    check = self.check_result(case, result)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 90, in check_result
+    checker = case.checker()
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/problem.py", line 353, in checker
+    raise InvalidInitException('malformed checker: no check method found')
+dmoj.config.InvalidInitException: malformed checker: no check method found
+
+INFO 2020-03-18 02:29:59,385 judgelist Judge available after grading 77: judge1
+INFO 2020-03-18 02:49:47,673 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:49:47,678 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:58:02,464 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:58:02,757 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:58:03,313 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:58:16,227 judgelist Free judges: 1
+INFO 2020-03-18 02:58:16,227 judgelist Dispatched submission 77 to: judge1
+INFO 2020-03-18 02:58:16,246 judgehandler Submission acknowledged: 77
+INFO 2020-03-18 02:58:17,036 judgehandler judge1: Submission generated compiler messages: 77
+INFO 2020-03-18 02:58:17,068 judgehandler judge1: Grading has begun on: 77
+ERROR 2020-03-18 02:58:17,119 judgehandler Judge judge1 failed while handling submission 77
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 164, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, meta, report=report)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 116, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 208, in grade_cases
+    result = grader.grade(case)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 41, in grade
+    check = self.check_result(case, result)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 104, in check_result
+    execution_time=result.execution_time)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 37, in check
+    make_input(process_output, judge_input)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 31, in make_input
+    with open(INPUT_FILE, 'r') as f:
+FileNotFoundError: [Errno 2] No such file or directory: 'input.txt'
+
+INFO 2020-03-18 02:58:17,154 judgelist Judge available after grading 77: judge1
+INFO 2020-03-18 02:58:40,527 judgelist Free judges: 1
+INFO 2020-03-18 02:58:40,527 judgelist Dispatched submission 77 to: judge1
+INFO 2020-03-18 02:58:40,531 judgehandler Submission acknowledged: 77
+INFO 2020-03-18 02:58:41,312 judgehandler judge1: Submission generated compiler messages: 77
+INFO 2020-03-18 02:58:41,354 judgehandler judge1: Grading has begun on: 77
+ERROR 2020-03-18 02:58:41,390 judgehandler Judge judge1 failed while handling submission 77
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 164, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, meta, report=report)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 116, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 208, in grade_cases
+    result = grader.grade(case)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 41, in grade
+    check = self.check_result(case, result)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 104, in check_result
+    execution_time=result.execution_time)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 37, in check
+    make_input(process_output, judge_input)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 31, in make_input
+    with open(INPUT_FILE, 'r') as f:
+FileNotFoundError: [Errno 2] No such file or directory: 'input.txt'
+
+INFO 2020-03-18 02:58:41,399 judgelist Judge available after grading 77: judge1
+INFO 2020-03-18 02:59:01,296 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:59:01,330 judgehandler judge1: Updated problem list
+INFO 2020-03-18 02:59:08,495 judgelist Free judges: 1
+INFO 2020-03-18 02:59:08,495 judgelist Dispatched submission 77 to: judge1
+INFO 2020-03-18 02:59:08,506 judgehandler Submission acknowledged: 77
+INFO 2020-03-18 02:59:09,246 judgehandler judge1: Submission generated compiler messages: 77
+INFO 2020-03-18 02:59:09,336 judgehandler judge1: Grading has begun on: 77
+ERROR 2020-03-18 02:59:09,427 judgehandler Judge judge1 failed while handling submission 77
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 164, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, meta, report=report)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 116, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 208, in grade_cases
+    result = grader.grade(case)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 41, in grade
+    check = self.check_result(case, result)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 104, in check_result
+    execution_time=result.execution_time)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 37, in check
+    make_input(process_output, judge_input)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 32, in make_input
+    f.write(judge_input)
+TypeError: write() argument must be str, not bytes
+
+INFO 2020-03-18 02:59:09,436 judgelist Judge available after grading 77: judge1
+INFO 2020-03-18 03:02:03,597 judgehandler judge1: Updated problem list
+INFO 2020-03-18 03:02:03,631 judgehandler judge1: Updated problem list
+INFO 2020-03-18 03:02:09,589 judgelist Free judges: 1
+INFO 2020-03-18 03:02:09,589 judgelist Dispatched submission 77 to: judge1
+INFO 2020-03-18 03:02:09,597 judgehandler Submission acknowledged: 77
+INFO 2020-03-18 03:02:10,405 judgehandler judge1: Submission generated compiler messages: 77
+INFO 2020-03-18 03:02:10,435 judgehandler judge1: Grading has begun on: 77
+ERROR 2020-03-18 03:02:11,277 judgehandler Judge judge1 failed while handling submission 77
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 164, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, meta, report=report)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 116, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 208, in grade_cases
+    result = grader.grade(case)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 41, in grade
+    check = self.check_result(case, result)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 104, in check_result
+    execution_time=result.execution_time)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 38, in check
+    runcpp()
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 27, in runcpp
+    process = executor.launch(time=10, memory=1048576, stdin=INPUT_FILE)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/executors/mixins.py", line 122, in launch
+    fsize=self.fsize)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/cptbox/tracer.py", line 93, in __call__
+    return super().__call__(debugger, self.debugger_type, argv, executable, *args, **kwargs)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/cptbox/tracer.py", line 120, in __init__
+    self.__init_streams(stdin, stdout, stderr)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/cptbox/tracer.py", line 275, in __init_streams
+    self._child_stdin, self._stdin = stdin.fileno(), -1
+AttributeError: 'str' object has no attribute 'fileno'
+
+INFO 2020-03-18 03:02:11,290 judgelist Judge available after grading 77: judge1
+INFO 2020-03-18 03:04:39,454 judgehandler judge1: Updated problem list
+INFO 2020-03-18 03:04:39,488 judgehandler judge1: Updated problem list
+INFO 2020-03-18 03:04:45,641 judgelist Free judges: 1
+INFO 2020-03-18 03:04:45,641 judgelist Dispatched submission 77 to: judge1
+INFO 2020-03-18 03:04:45,708 judgehandler Submission acknowledged: 77
+INFO 2020-03-18 03:04:46,833 judgehandler judge1: Submission generated compiler messages: 77
+INFO 2020-03-18 03:04:47,411 judgehandler judge1: Grading has begun on: 77
+ERROR 2020-03-18 03:04:47,633 judgehandler Judge judge1 failed while handling submission 77
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 164, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, meta, report=report)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 116, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 208, in grade_cases
+    result = grader.grade(case)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 41, in grade
+    check = self.check_result(case, result)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 104, in check_result
+    execution_time=result.execution_time)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 40, in check
+    runcpp()
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 28, in runcpp
+    process = executor.launch(time=10, memory=1048576, stdin=INPUT_FILE)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/executors/mixins.py", line 122, in launch
+    fsize=self.fsize)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/cptbox/tracer.py", line 93, in __call__
+    return super().__call__(debugger, self.debugger_type, argv, executable, *args, **kwargs)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/cptbox/tracer.py", line 120, in __init__
+    self.__init_streams(stdin, stdout, stderr)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/cptbox/tracer.py", line 275, in __init_streams
+    self._child_stdin, self._stdin = stdin.fileno(), -1
+AttributeError: 'str' object has no attribute 'fileno'
+
+INFO 2020-03-18 03:04:47,642 judgelist Judge available after grading 77: judge1
+INFO 2020-03-18 03:04:47,678 judgehandler judge1: Updated problem list
+INFO 2020-03-18 03:06:49,321 judgehandler judge1: Updated problem list
+INFO 2020-03-18 03:06:49,356 judgehandler judge1: Updated problem list
+INFO 2020-03-18 03:06:56,966 judgelist Free judges: 1
+INFO 2020-03-18 03:06:56,967 judgelist Dispatched submission 77 to: judge1
+INFO 2020-03-18 03:06:56,984 judgehandler Submission acknowledged: 77
+INFO 2020-03-18 03:06:58,090 judgehandler judge1: Submission generated compiler messages: 77
+INFO 2020-03-18 03:06:58,209 judgehandler judge1: Grading has begun on: 77
+ERROR 2020-03-18 03:06:58,871 judgehandler Judge judge1 failed while handling submission 77
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 164, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, meta, report=report)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 116, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 208, in grade_cases
+    result = grader.grade(case)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 41, in grade
+    check = self.check_result(case, result)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 104, in check_result
+    execution_time=result.execution_time)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 41, in check
+    runcpp()
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 28, in runcpp
+    process = executor.launch(time=10, memory=1048576, stdin=INPUT_FILE)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/executors/mixins.py", line 122, in launch
+    fsize=self.fsize)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/cptbox/tracer.py", line 93, in __call__
+    return super().__call__(debugger, self.debugger_type, argv, executable, *args, **kwargs)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/cptbox/tracer.py", line 120, in __init__
+    self.__init_streams(stdin, stdout, stderr)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/cptbox/tracer.py", line 275, in __init_streams
+    self._child_stdin, self._stdin = stdin.fileno(), -1
+AttributeError: 'str' object has no attribute 'fileno'
+
+INFO 2020-03-18 03:06:58,881 judgelist Judge available after grading 77: judge1
+INFO 2020-03-18 03:06:59,875 judgehandler judge1: Updated problem list
+INFO 2020-03-18 03:07:38,822 judgehandler judge1: Updated problem list
+INFO 2020-03-18 03:07:38,857 judgehandler judge1: Updated problem list
+INFO 2020-03-18 03:07:38,861 judgehandler judge1: Updated problem list
+INFO 2020-03-18 03:07:46,632 judgelist Free judges: 1
+INFO 2020-03-18 03:07:46,632 judgelist Dispatched submission 77 to: judge1
+INFO 2020-03-18 03:07:46,636 judgehandler Submission acknowledged: 77
+INFO 2020-03-18 03:07:47,381 judgehandler judge1: Submission generated compiler messages: 77
+INFO 2020-03-18 03:07:47,425 judgehandler judge1: Grading has begun on: 77
+ERROR 2020-03-18 03:07:48,150 judgehandler Judge judge1 failed while handling submission 77
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 164, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, meta, report=report)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 116, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 208, in grade_cases
+    result = grader.grade(case)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 41, in grade
+    check = self.check_result(case, result)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 104, in check_result
+    execution_time=result.execution_time)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 41, in check
+    runcpp()
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 28, in runcpp
+    process = executor.launch(time=10, memory=1048576, stdin=INPUT_FILE)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/executors/mixins.py", line 122, in launch
+    fsize=self.fsize)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/cptbox/tracer.py", line 93, in __call__
+    return super().__call__(debugger, self.debugger_type, argv, executable, *args, **kwargs)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/cptbox/tracer.py", line 120, in __init__
+    self.__init_streams(stdin, stdout, stderr)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/cptbox/tracer.py", line 275, in __init_streams
+    self._child_stdin, self._stdin = stdin.fileno(), -1
+AttributeError: 'str' object has no attribute 'fileno'
+
+INFO 2020-03-18 03:07:48,160 judgelist Judge available after grading 77: judge1
+INFO 2020-03-18 03:07:48,197 judgehandler judge1: Updated problem list
+INFO 2020-03-18 03:12:58,237 judgehandler judge1: Updated problem list
+INFO 2020-03-18 03:12:58,308 judgehandler judge1: Updated problem list
+INFO 2020-03-18 03:13:02,770 judgelist Free judges: 1
+INFO 2020-03-18 03:13:02,771 judgelist Dispatched submission 77 to: judge1
+INFO 2020-03-18 03:13:02,775 judgehandler Submission acknowledged: 77
+INFO 2020-03-18 03:13:03,696 judgehandler judge1: Submission generated compiler messages: 77
+INFO 2020-03-18 03:13:04,361 judgehandler judge1: Grading has begun on: 77
+INFO 2020-03-18 03:13:04,515 judgehandler judge1: 1 test case(s) completed on: 77
+INFO 2020-03-18 03:13:05,308 judgehandler judge1: 1 test case(s) completed on: 77
+INFO 2020-03-18 03:13:06,449 judgehandler judge1: Grading has ended on: 77
+INFO 2020-03-18 03:13:06,449 judgelist Judge available after grading 77: judge1
+INFO 2020-03-18 03:13:07,552 judgehandler judge1: Updated problem list
+INFO 2020-03-18 03:13:07,558 judgehandler judge1: Updated problem list
+INFO 2020-03-18 03:13:17,737 judgelist Free judges: 1
+INFO 2020-03-18 03:13:17,738 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 03:13:17,790 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 03:13:18,587 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 03:13:18,883 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 03:13:19,534 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 03:13:21,182 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 03:13:21,323 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 03:13:21,323 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 03:13:22,412 judgehandler judge1: Updated problem list
+INFO 2020-03-18 03:13:22,421 judgehandler judge1: Updated problem list
+INFO 2020-03-18 03:14:17,756 judgehandler judge1: Updated problem list
+INFO 2020-03-18 03:20:16,676 judgehandler judge1: Updated problem list
+INFO 2020-03-18 03:20:22,974 judgelist Free judges: 1
+INFO 2020-03-18 03:20:22,974 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 03:20:22,992 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 03:20:23,787 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 03:20:23,825 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 03:20:24,537 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 164, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, meta, report=report)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 116, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 208, in grade_cases
+    result = grader.grade(case)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 41, in grade
+    check = self.check_result(case, result)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 104, in check_result
+    execution_time=result.execution_time)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 41, in check
+    runcpp()
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 25, in runcpp
+    executor = executors['CPP14'].Executor('validator', validator_source.read())
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/executors/compiled_executor.py", line 63, in __call__
+    obj.compile()
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/executors/compiled_executor.py", line 225, in compile
+    self.handle_compile_error(output)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/executors/compiled_executor.py", line 210, in handle_compile_error
+    raise CompileError(output)
+dmoj.error.CompileError: validatorcpp.cpp: In function ‘int main()’:
+validatorcpp.cpp:11:2: error: expected ‘;’ before ‘return’
+  return 0;
+  ^~~~~~
+
+
+INFO 2020-03-18 03:20:24,546 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 03:20:24,588 judgehandler judge1: Updated problem list
+INFO 2020-03-18 03:21:16,137 judgehandler judge1: Updated problem list
+INFO 2020-03-18 03:32:39,753 judgehandler judge1: Updated problem list
+INFO 2020-03-18 03:32:39,788 judgehandler judge1: Updated problem list
+INFO 2020-03-18 03:32:48,521 judgelist Free judges: 1
+INFO 2020-03-18 03:32:48,521 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 03:32:48,589 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 03:32:49,352 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 03:32:50,331 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 03:32:50,368 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 164, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, meta, report=report)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 116, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 208, in grade_cases
+    result = grader.grade(case)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 41, in grade
+    check = self.check_result(case, result)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 104, in check_result
+    execution_time=result.execution_time)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 50, in check
+    print(len(result[0]))
+TypeError: object of type 'NoneType' has no len()
+
+INFO 2020-03-18 03:32:50,400 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 03:32:50,432 judgehandler judge1: Updated problem list
+INFO 2020-03-18 03:59:36,959 judgehandler judge1: Updated problem list
+INFO 2020-03-18 03:59:37,800 judgehandler judge1: Updated problem list
+INFO 2020-03-18 03:59:54,763 judgelist Free judges: 1
+INFO 2020-03-18 03:59:54,764 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 03:59:54,773 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 03:59:55,560 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 03:59:55,598 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 03:59:55,634 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 164, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, meta, report=report)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 116, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 208, in grade_cases
+    result = grader.grade(case)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 41, in grade
+    check = self.check_result(case, result)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 104, in check_result
+    execution_time=result.execution_time)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 58, in check
+    make_input(process_output, judge_input)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 51, in make_input
+    with open(INPUT_FILE, 'w') as f:
+NameError: name 'INPUT_FILE' is not defined
+
+INFO 2020-03-18 03:59:55,644 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 04:00:16,344 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:00:16,389 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:00:16,394 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:00:19,019 judgelist Free judges: 1
+INFO 2020-03-18 04:00:19,019 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 04:00:19,036 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 04:00:19,823 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 04:00:19,859 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 04:00:20,634 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 04:00:21,360 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 04:00:21,450 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 04:00:21,450 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 04:00:21,590 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:00:21,598 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:00:21,856 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:01:59,766 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:02:08,574 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:02:12,729 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:02:12,745 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:02:12,797 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:02:12,800 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:02:16,010 judgelist Free judges: 1
+INFO 2020-03-18 04:02:16,011 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 04:02:16,028 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 04:02:16,910 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 04:02:17,401 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 04:02:17,669 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 164, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, meta, report=report)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 116, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 208, in grade_cases
+    result = grader.grade(case)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 41, in grade
+    check = self.check_result(case, result)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 104, in check_result
+    execution_time=result.execution_time)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 59, in check
+    result = runcpp()
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 31, in runcpp
+    executor = executors['CPP14'].Executor('validator', validator_source.read())
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/executors/compiled_executor.py", line 63, in __call__
+    obj.compile()
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/executors/compiled_executor.py", line 225, in compile
+    self.handle_compile_error(output)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/executors/compiled_executor.py", line 210, in handle_compile_error
+    raise CompileError(output)
+dmoj.error.CompileError: validatorcpp.cpp: In function ‘int main()’:
+validatorcpp.cpp:11:2: error: expected ‘;’ before ‘return’
+  return 0;
+  ^~~~~~
+
+
+INFO 2020-03-18 04:02:17,678 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 04:02:17,713 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:02:35,409 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:02:39,651 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:02:39,685 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:02:39,688 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:02:44,848 judgelist Free judges: 1
+INFO 2020-03-18 04:02:44,849 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 04:02:44,867 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 04:02:45,864 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 04:02:46,407 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 04:02:46,838 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 04:02:47,644 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 04:02:47,713 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 04:02:47,714 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 04:02:47,881 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:02:47,885 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:02:48,140 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:02:54,208 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:03:45,052 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:04:41,781 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:04:41,784 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:04:41,816 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:04:41,819 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:04:44,965 judgelist Free judges: 1
+INFO 2020-03-18 04:04:44,965 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 04:04:44,982 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 04:04:45,776 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 04:04:46,509 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 04:04:46,898 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 04:04:48,028 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 04:04:48,287 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 04:04:48,287 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 04:04:48,497 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:04:48,498 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:04:48,500 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:05:57,971 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:06:00,046 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:06:09,244 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:06:09,279 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:06:11,674 judgelist Free judges: 1
+INFO 2020-03-18 04:06:11,674 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 04:06:11,691 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 04:06:12,480 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 04:06:12,521 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 04:06:13,381 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 04:06:14,492 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 04:06:14,602 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 04:06:14,602 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 04:06:14,826 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:06:14,834 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:06:14,931 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:07:50,006 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:07:50,041 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:07:50,044 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:07:53,609 judgelist Free judges: 1
+INFO 2020-03-18 04:07:53,609 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 04:07:53,626 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 04:07:54,409 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 04:07:54,460 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 04:07:55,271 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 04:07:55,938 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 04:07:56,081 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 04:07:56,081 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 04:07:56,426 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:07:56,434 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:07:56,442 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:28:08,497 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:28:08,531 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:28:08,534 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:28:10,929 judgelist Free judges: 1
+INFO 2020-03-18 04:28:10,930 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 04:28:11,001 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 04:28:12,122 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 04:28:13,509 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 04:28:13,698 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 04:28:13,791 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 04:28:13,884 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 04:28:13,885 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 04:28:14,107 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:28:14,115 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:28:14,123 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:28:48,957 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:28:50,501 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:28:54,002 judgelist Free judges: 1
+INFO 2020-03-18 04:28:54,002 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 04:28:54,006 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 04:28:54,763 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 04:28:54,804 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 04:28:55,666 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 04:28:56,233 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 04:28:56,327 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 04:28:56,327 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 04:28:56,539 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:28:56,547 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:28:56,731 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:31:13,256 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:31:15,205 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:31:26,852 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:31:26,909 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:31:26,911 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:31:41,488 judgelist Free judges: 1
+INFO 2020-03-18 04:31:41,488 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 04:31:41,493 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 04:31:42,259 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 04:31:42,299 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 04:31:43,149 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 04:31:43,799 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 04:31:44,114 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 04:31:44,115 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 04:31:44,998 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:31:45,006 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:31:45,014 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:32:50,824 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:33:02,789 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:33:02,793 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:33:02,824 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:33:02,826 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:33:05,426 judgelist Free judges: 1
+INFO 2020-03-18 04:33:05,426 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 04:33:05,443 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 04:33:06,223 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 04:33:06,269 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 04:33:07,011 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 04:33:07,761 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 04:33:07,854 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 04:33:07,854 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 04:33:08,076 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:33:08,079 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:33:08,257 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:48:58,744 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:48:58,790 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:48:58,794 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:49:03,667 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:49:03,701 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:49:06,026 judgelist Free judges: 1
+INFO 2020-03-18 04:49:06,026 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 04:49:06,034 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 04:49:06,814 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 04:49:06,852 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 04:49:07,610 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 04:49:08,492 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 04:49:09,803 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 04:49:09,803 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 04:49:10,565 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:49:10,571 judgehandler judge1: Updated problem list
+INFO 2020-03-18 04:49:10,576 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:05:02,246 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:05:02,254 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:05:02,837 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:05:09,041 judgelist Free judges: 1
+INFO 2020-03-18 05:05:09,042 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 05:05:09,059 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 05:05:09,862 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 05:05:09,915 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 05:05:10,737 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:05:11,454 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:05:11,605 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 05:05:11,605 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 05:05:11,858 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:05:11,860 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:05:11,948 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:06:37,958 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:06:37,992 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:06:37,994 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:06:41,334 judgelist Free judges: 1
+INFO 2020-03-18 05:06:41,334 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 05:06:41,351 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 05:06:42,293 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 05:06:42,410 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 05:07:13,649 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:07:44,508 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:07:44,586 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 05:07:44,586 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 05:07:44,737 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:07:44,743 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:08:44,352 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:08:44,398 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:08:44,402 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:08:47,676 judgelist Free judges: 1
+INFO 2020-03-18 05:08:47,676 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 05:08:47,695 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 05:08:48,511 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 05:08:48,553 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 05:09:19,804 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:09:50,686 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:09:50,785 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 05:09:50,785 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 05:09:50,958 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:09:50,965 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:11:32,552 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:11:32,586 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:11:34,886 judgelist Free judges: 1
+INFO 2020-03-18 05:11:34,886 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 05:11:34,904 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 05:11:35,683 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 05:11:35,727 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 05:11:36,484 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:11:37,219 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:11:37,741 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 05:11:37,741 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 05:11:41,059 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:11:41,062 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:12:47,223 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:12:47,629 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:12:58,742 judgelist Free judges: 1
+INFO 2020-03-18 05:12:58,743 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 05:12:58,761 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 05:12:59,557 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 05:12:59,594 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 05:13:00,350 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:13:01,078 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:13:01,191 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 05:13:01,191 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 05:13:01,390 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:13:01,393 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:13:27,886 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:13:36,696 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:13:36,732 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:13:39,149 judgelist Free judges: 1
+INFO 2020-03-18 05:13:39,150 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 05:13:39,166 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 05:13:40,103 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 05:13:40,530 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 05:13:41,338 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:13:41,980 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:13:42,384 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 05:13:42,384 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 05:13:43,266 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:13:43,268 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:14:57,393 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:14:57,740 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:15:00,537 judgelist Free judges: 1
+INFO 2020-03-18 05:15:00,537 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 05:15:00,541 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 05:15:01,316 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 05:15:01,676 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 05:15:02,271 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:15:03,143 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:15:03,238 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 05:15:03,238 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 05:15:03,461 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:15:03,469 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:16:32,254 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:16:51,941 judgelist Free judges: 1
+INFO 2020-03-18 05:16:51,941 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 05:16:51,957 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 05:16:52,756 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 05:16:52,797 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 05:16:52,874 judgehandler judge1: 2 test case(s) completed on: 78
+INFO 2020-03-18 05:16:52,950 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 05:16:52,950 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 05:16:53,267 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:16:53,325 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:16:59,187 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:16:59,562 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:17:00,669 judgelist Free judges: 1
+INFO 2020-03-18 05:17:00,670 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 05:17:00,686 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 05:17:01,474 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 05:17:01,771 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 05:17:02,146 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:17:02,214 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:17:02,358 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 05:17:02,359 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 05:17:02,967 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:17:02,976 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:17:22,480 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:19:43,002 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:19:43,036 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:19:45,745 judgelist Free judges: 1
+INFO 2020-03-18 05:19:45,745 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 05:19:45,750 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 05:19:46,505 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 05:19:46,540 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 05:19:46,622 judgehandler judge1: 2 test case(s) completed on: 78
+INFO 2020-03-18 05:19:46,689 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 05:19:46,690 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 05:19:47,017 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:19:47,075 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:20:27,753 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:20:27,756 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:20:27,787 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:20:27,790 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:20:31,121 judgelist Free judges: 1
+INFO 2020-03-18 05:20:31,122 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 05:20:31,140 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 05:20:31,933 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 05:20:32,779 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 05:20:32,876 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 42, in runcpp
+    stdout, stderr = proc.communicate(test_message + b'\n')
+NameError: name 'proc' is not defined
+
+During handling of the above exception, another exception occurred:
+
+Traceback (most recent call last):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 164, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, meta, report=report)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 116, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 208, in grade_cases
+    result = grader.grade(case)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 41, in grade
+    check = self.check_result(case, result)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 104, in check_result
+    execution_time=result.execution_time)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 63, in check
+    result = runcpp()
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 48, in runcpp
+    raise(Exception())
+Exception
+
+INFO 2020-03-18 05:20:32,911 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 05:20:32,966 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:21:44,280 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:21:44,314 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:21:47,180 judgelist Free judges: 1
+INFO 2020-03-18 05:21:47,181 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 05:21:47,247 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 05:21:48,038 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 05:21:48,079 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 05:21:48,114 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 164, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, meta, report=report)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 116, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 208, in grade_cases
+    result = grader.grade(case)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 41, in grade
+    check = self.check_result(case, result)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 104, in check_result
+    execution_time=result.execution_time)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 63, in check
+    result = runcpp()
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 42, in runcpp
+    stdout, stderr = proc.communicate(test_message + b'\n')
+NameError: name 'proc' is not defined
+
+INFO 2020-03-18 05:21:48,123 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 05:21:48,551 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:22:01,144 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:22:01,178 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:22:03,099 judgelist Free judges: 1
+INFO 2020-03-18 05:22:03,099 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 05:22:03,104 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 05:22:03,886 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 05:22:04,236 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 05:22:04,330 judgehandler judge1: 2 test case(s) completed on: 78
+INFO 2020-03-18 05:22:04,423 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 05:22:04,424 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 05:22:04,531 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:22:04,685 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:25:24,146 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:25:24,182 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:25:25,576 judgelist Free judges: 1
+INFO 2020-03-18 05:25:25,576 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 05:25:25,582 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 05:25:26,375 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 05:25:26,593 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 05:25:27,053 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 164, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, meta, report=report)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 116, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 208, in grade_cases
+    result = grader.grade(case)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 41, in grade
+    check = self.check_result(case, result)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 104, in check_result
+    execution_time=result.execution_time)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 63, in check
+    result = runcpp()
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 42, in runcpp
+    stdout, stderr = process.communicate(test_message)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/utils/communicate.py", line 68, in safe_communicate
+    input_offset += os.write(fd, chunk)
+TypeError: a bytes-like object is required, not 'str'
+
+INFO 2020-03-18 05:25:27,100 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 05:25:28,004 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:27:56,860 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:27:56,894 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:27:59,176 judgelist Free judges: 1
+INFO 2020-03-18 05:27:59,177 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 05:27:59,196 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 05:28:00,211 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 05:28:00,261 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 05:28:00,296 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 164, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, meta, report=report)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 116, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 208, in grade_cases
+    result = grader.grade(case)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 41, in grade
+    check = self.check_result(case, result)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 104, in check_result
+    execution_time=result.execution_time)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 56, in check
+    make_input(process_output, judge_input)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 21, in make_input
+    return process_output + '\n' + judge_input
+TypeError: can't concat str to bytes
+
+INFO 2020-03-18 05:28:00,305 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 05:28:18,718 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:28:18,753 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:28:18,758 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:28:20,908 judgelist Free judges: 1
+INFO 2020-03-18 05:28:20,908 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 05:28:20,925 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 05:28:22,429 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 05:28:24,764 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 05:28:24,927 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:28:25,094 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:28:25,216 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 05:28:25,217 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 05:29:05,901 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:29:08,119 judgelist Free judges: 1
+INFO 2020-03-18 05:29:08,120 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 05:29:08,137 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 05:29:08,948 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 05:29:08,988 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 05:29:09,960 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:29:10,718 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:29:10,812 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 05:29:10,812 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 05:31:55,127 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:32:10,281 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:32:10,315 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:32:12,943 judgelist Free judges: 1
+INFO 2020-03-18 05:32:12,943 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 05:32:12,947 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 05:32:13,687 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 05:32:13,726 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 05:32:14,473 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:32:15,256 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:32:15,345 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 05:32:15,345 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 05:32:39,945 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:32:43,752 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:32:49,769 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:32:49,773 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:32:49,804 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:32:49,807 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:32:52,492 judgelist Free judges: 1
+INFO 2020-03-18 05:32:52,493 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 05:32:52,510 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 05:32:53,347 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 05:32:53,396 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 05:32:54,277 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:32:54,874 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:32:54,970 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 05:32:54,970 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 05:33:31,207 judgelist Free judges: 1
+INFO 2020-03-18 05:33:31,207 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 05:33:31,224 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 05:33:32,021 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 05:33:32,061 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 05:33:33,081 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:33:33,685 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:33:33,783 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 05:33:33,783 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 05:33:46,550 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:33:47,343 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:33:49,930 judgelist Free judges: 1
+INFO 2020-03-18 05:33:49,931 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 05:33:49,935 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 05:33:50,734 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 05:33:50,789 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 05:33:51,605 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:33:53,705 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:33:55,292 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 05:33:55,293 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 05:34:29,014 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:34:31,168 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:34:46,691 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:34:50,745 judgelist Free judges: 1
+INFO 2020-03-18 05:34:50,746 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 05:34:50,762 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 05:34:51,555 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 05:34:51,588 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 05:34:52,438 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:34:53,089 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:34:53,188 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 05:34:53,188 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 05:47:30,555 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:47:30,600 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:47:30,602 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:47:32,886 judgelist Free judges: 1
+INFO 2020-03-18 05:47:32,886 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 05:47:32,904 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 05:47:33,727 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 05:47:33,769 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 05:47:34,554 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:47:35,334 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:47:35,435 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 05:47:35,435 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 05:47:35,648 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:47:35,829 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:48:05,656 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:48:07,377 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:48:11,877 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:48:34,503 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:48:34,539 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:48:36,333 judgelist Free judges: 1
+INFO 2020-03-18 05:48:36,333 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 05:48:36,338 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 05:48:37,099 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 05:48:37,140 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 05:48:37,893 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:48:38,641 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:48:38,735 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 05:48:38,735 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 05:48:38,951 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:48:39,127 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:49:26,395 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:49:26,430 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:49:26,433 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:49:27,773 judgelist Free judges: 1
+INFO 2020-03-18 05:49:27,774 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 05:49:27,791 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 05:49:28,580 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 05:49:28,617 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 05:49:29,463 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:49:30,242 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:49:30,699 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 05:49:30,700 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 05:51:41,079 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:51:55,288 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:55:29,334 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:56:01,496 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:56:01,512 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:56:01,564 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:56:01,567 judgehandler judge1: Updated problem list
+INFO 2020-03-18 05:56:05,295 judgelist Free judges: 1
+INFO 2020-03-18 05:56:05,295 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 05:56:05,312 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 05:56:06,173 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 05:56:06,207 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 05:56:37,310 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:57:08,757 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 05:57:08,833 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 05:57:08,833 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 06:04:52,739 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:04:52,782 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:04:57,102 judgelist Free judges: 1
+INFO 2020-03-18 06:04:57,103 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 06:04:57,300 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 06:04:58,056 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 06:04:59,303 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 06:05:29,538 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 06:05:57,309 judgelist Abort request: 78
+INFO 2020-03-18 06:06:00,316 judgelist Abort request: 78
+INFO 2020-03-18 06:06:00,528 judgehandler judge1: Submission aborted: 78
+INFO 2020-03-18 06:06:00,528 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 06:06:00,697 judgelist Abort request: 78
+INFO 2020-03-18 06:06:39,173 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:06:39,558 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:06:39,974 judgelist Free judges: 1
+INFO 2020-03-18 06:06:39,974 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 06:06:39,991 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 06:06:40,789 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 06:06:40,841 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 06:07:11,914 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 06:07:27,961 judgelist Abort request: 78
+INFO 2020-03-18 06:07:29,301 judgelist Abort request: 78
+INFO 2020-03-18 06:07:30,107 judgelist Abort request: 78
+INFO 2020-03-18 06:07:42,920 judgehandler judge1: Submission aborted: 78
+INFO 2020-03-18 06:07:42,920 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 06:08:00,686 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:08:05,751 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:08:05,786 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:08:08,747 judgelist Free judges: 1
+INFO 2020-03-18 06:08:08,748 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 06:08:08,764 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 06:08:09,549 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 06:08:09,593 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 06:08:40,773 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 06:08:46,508 judgelist Abort request: 78
+INFO 2020-03-18 06:09:11,712 judgehandler judge1: Submission aborted: 78
+INFO 2020-03-18 06:09:11,712 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 06:09:12,488 judgelist Free judges: 1
+INFO 2020-03-18 06:09:12,488 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 06:09:12,549 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:09:12,556 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:09:12,563 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 06:09:13,433 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 06:09:13,479 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 06:09:27,697 judgelist Abort request: 78
+INFO 2020-03-18 06:09:38,190 judgelist Abort request: 78
+INFO 2020-03-18 06:09:44,640 judgehandler judge1: Submission aborted: 78
+INFO 2020-03-18 06:09:44,640 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 06:10:29,829 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:10:29,863 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:10:32,316 judgelist Free judges: 1
+INFO 2020-03-18 06:10:32,316 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 06:10:32,382 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 06:10:33,193 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 06:10:33,238 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 06:10:40,172 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 06:10:46,940 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 06:10:47,817 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 06:10:47,818 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 06:26:00,330 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:26:16,292 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:26:16,295 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:26:16,326 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:26:16,329 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:26:18,827 judgelist Free judges: 1
+INFO 2020-03-18 06:26:18,827 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 06:26:18,833 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 06:26:19,611 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 06:26:19,654 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 06:26:20,402 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 164, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, meta, report=report)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 116, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 208, in grade_cases
+    result = grader.grade(case)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 46, in grade
+    check = CheckerResult(check, case.points if check else 0.0)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/result.py", line 73, in __init__
+    assert isinstance(passed, bool)
+AssertionError
+
+INFO 2020-03-18 06:26:20,413 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 06:28:20,473 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:28:20,475 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:28:20,508 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:28:22,681 judgelist Free judges: 1
+INFO 2020-03-18 06:28:22,681 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 06:28:24,365 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 06:28:25,252 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 06:28:25,308 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 06:28:25,984 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 164, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, meta, report=report)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 116, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 208, in grade_cases
+    result = grader.grade(case)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 46, in grade
+    check = CheckerResult(check, case.points if check else 0.0)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/result.py", line 73, in __init__
+    assert isinstance(passed, bool)
+AssertionError
+
+INFO 2020-03-18 06:28:25,993 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 06:29:45,524 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:29:45,558 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:29:45,561 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:29:48,234 judgelist Free judges: 1
+INFO 2020-03-18 06:29:48,234 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 06:29:48,247 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 06:29:49,048 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 06:29:49,080 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 06:29:50,052 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 06:29:51,012 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 06:29:51,106 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 06:29:51,107 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 06:30:28,830 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:30:35,499 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:30:42,724 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:30:42,757 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:30:42,759 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:30:42,761 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:30:44,319 judgelist Free judges: 1
+INFO 2020-03-18 06:30:44,319 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 06:30:44,336 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 06:30:45,188 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 06:30:45,228 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 06:30:45,888 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 164, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, meta, report=report)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 116, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 208, in grade_cases
+    result = grader.grade(case)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 41, in grade
+    check = self.check_result(case, result)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 104, in check_result
+    execution_time=result.execution_time)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 32, in check
+    executor = executors['CPP14'].Executor('validator', validator_source.read())
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/executors/compiled_executor.py", line 63, in __call__
+    obj.compile()
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/executors/compiled_executor.py", line 225, in compile
+    self.handle_compile_error(output)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/executors/compiled_executor.py", line 210, in handle_compile_error
+    raise CompileError(output)
+dmoj.error.CompileError: validatorcpp.cpp: In function ‘int main()’:
+validatorcpp.cpp:7:14: error: too many arguments to function ‘int getchar()’
+     getchar(c);
+              ^
+In file included from /usr/include/stdio.h:859:0
+                 from /usr/include/c++/7/cstdio:42
+                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:46
+                 from validatorcpp.cpp:1:
+/usr/include/x86_64-linux-gnu/bits/stdio.h:44:1: note: declared here
+ getchar (void)
+ ^~~~~~~
+
+
+INFO 2020-03-18 06:30:45,897 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 06:30:55,495 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:31:46,205 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:31:46,239 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:31:46,243 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:32:02,292 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:32:02,483 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:32:02,639 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:32:02,801 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:32:06,193 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:32:06,195 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:32:06,227 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:32:06,229 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:32:10,915 judgelist Free judges: 1
+INFO 2020-03-18 06:32:10,916 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 06:32:10,932 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 06:32:11,785 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 06:32:11,917 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 06:32:19,015 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 06:32:25,495 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 06:32:25,588 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 06:32:25,588 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 06:39:52,099 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:39:52,132 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:39:52,135 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:39:55,023 judgelist Free judges: 1
+INFO 2020-03-18 06:39:55,023 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 06:39:55,034 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 06:39:55,809 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 06:39:55,860 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 06:39:56,560 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 164, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, meta, report=report)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 116, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 208, in grade_cases
+    result = grader.grade(case)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 41, in grade
+    check = self.check_result(case, result)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 104, in check_result
+    execution_time=result.execution_time)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 35, in check
+    with mktemp(judge_input) as input_file, mktemp(process_output) as output_file, mktemp(judge_output) as judge_file:
+NameError: name 'mktemp' is not defined
+
+INFO 2020-03-18 06:39:56,570 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 06:40:24,326 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:40:24,358 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:40:24,362 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:40:25,685 judgelist Free judges: 1
+INFO 2020-03-18 06:40:25,686 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 06:40:25,690 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 06:40:26,451 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 06:40:26,847 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 06:40:27,040 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 164, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, meta, report=report)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 116, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 208, in grade_cases
+    result = grader.grade(case)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 41, in grade
+    check = self.check_result(case, result)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 90, in check_result
+    checker = case.checker()
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/problem.py", line 345, in checker
+    checker = self.problem.load_checker(name)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/problem.py", line 152, in load_checker
+    self._checkers[name] = checker = load_module_from_file(os.path.join(get_problem_root(self.id), name))
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/utils/module.py", line 18, in load_module_from_file
+    return load_module(name, f.read(), os.path.abspath(filename))
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/utils/module.py", line 9, in load_module
+    exec(compile(code, filename or '<string>', 'exec'), mod.__dict__)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 5, in <module>
+    from dmoj.utils.helper_files import compile_with_auxiliary_files, mktemp
+ModuleNotFoundError: No module named 'dmoj.utils.helper_files'
+
+INFO 2020-03-18 06:40:27,071 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 06:41:45,645 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:41:45,679 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:41:48,021 judgelist Free judges: 1
+INFO 2020-03-18 06:41:48,022 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 06:41:48,039 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 06:41:48,846 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 06:41:48,884 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 06:41:49,614 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 164, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, meta, report=report)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 116, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 208, in grade_cases
+    result = grader.grade(case)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 41, in grade
+    check = self.check_result(case, result)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 104, in check_result
+    execution_time=result.execution_time)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 44, in check
+    stderr=subprocess.PIPE, memory=memory_limit, time=time_limit)
+NameError: name 'memory_limit' is not defined
+
+INFO 2020-03-18 06:41:49,624 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 06:43:02,896 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:43:02,904 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:43:03,640 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:43:07,078 judgelist Free judges: 1
+INFO 2020-03-18 06:43:07,078 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 06:43:07,094 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 06:43:07,937 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 06:43:08,369 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 06:43:08,909 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 164, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, meta, report=report)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 116, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 208, in grade_cases
+    result = grader.grade(case)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 41, in grade
+    check = self.check_result(case, result)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 104, in check_result
+    execution_time=result.execution_time)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 48, in check
+    proc_output, error = map(utf8text, process.communicate())
+NameError: name 'utf8text' is not defined
+
+INFO 2020-03-18 06:43:08,919 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 06:44:07,418 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:44:07,420 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:44:07,453 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:44:11,440 judgelist Free judges: 1
+INFO 2020-03-18 06:44:11,440 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 06:44:11,445 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 06:44:12,207 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 06:44:12,245 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 06:44:19,362 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 06:44:25,907 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 06:44:27,182 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 06:44:27,182 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 06:44:46,837 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:46:13,223 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:46:34,982 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:46:35,017 judgehandler judge1: Updated problem list
+INFO 2020-03-18 06:46:38,489 judgelist Free judges: 1
+INFO 2020-03-18 06:46:38,489 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 06:46:38,505 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 06:46:39,324 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 06:46:40,401 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 06:46:46,472 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 06:46:52,572 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 06:46:54,541 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 06:46:54,542 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 07:01:48,256 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:01:48,290 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:01:53,103 judgelist Free judges: 1
+INFO 2020-03-18 07:01:53,103 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 07:01:53,120 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 07:01:53,927 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 07:01:53,980 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 07:01:54,031 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 164, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, meta, report=report)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 116, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 208, in grade_cases
+    result = grader.grade(case)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 41, in grade
+    check = self.check_result(case, result)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 90, in check_result
+    checker = case.checker()
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/problem.py", line 345, in checker
+    checker = self.problem.load_checker(name)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/problem.py", line 152, in load_checker
+    self._checkers[name] = checker = load_module_from_file(os.path.join(get_problem_root(self.id), name))
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/utils/module.py", line 18, in load_module_from_file
+    return load_module(name, f.read(), os.path.abspath(filename))
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/utils/module.py", line 9, in load_module
+    exec(compile(code, filename or '<string>', 'exec'), mod.__dict__)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 68, in <module>
+    from dmoj.checkers.bridged import checker as Bcheck
+ModuleNotFoundError: No module named 'dmoj.checkers.bridged'
+
+INFO 2020-03-18 07:01:54,043 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 07:05:58,382 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:05:58,399 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:05:58,401 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:05:58,451 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:05:58,454 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:06:01,300 judgelist Free judges: 1
+INFO 2020-03-18 07:06:01,301 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 07:06:02,094 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 07:06:02,895 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 07:06:02,958 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 07:06:03,008 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 164, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, meta, report=report)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 116, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/judge.py", line 208, in grade_cases
+    result = grader.grade(case)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 41, in grade
+    check = self.check_result(case, result)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/graders/standard.py", line 90, in check_result
+    checker = case.checker()
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/problem.py", line 345, in checker
+    checker = self.problem.load_checker(name)
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/problem.py", line 152, in load_checker
+    self._checkers[name] = checker = load_module_from_file(os.path.join(get_problem_root(self.id), name))
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/utils/module.py", line 18, in load_module_from_file
+    return load_module(name, f.read(), os.path.abspath(filename))
+  File "/usr/local/lib/python3.6/dist-packages/dmoj/utils/module.py", line 9, in load_module
+    exec(compile(code, filename or '<string>', 'exec'), mod.__dict__)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 72, in <module>
+    from dmoj.contrib import contrib_modules
+ModuleNotFoundError: No module named 'dmoj.contrib'
+
+INFO 2020-03-18 07:06:03,041 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 07:07:14,737 judgehandler Judge disconnected from: ('127.0.0.1', 44094)
+INFO 2020-03-18 07:08:45,618 judgehandler Judge connected from: ('127.0.0.1', 51126)
+INFO 2020-03-18 07:08:45,619 judgehandler Judge authenticated: ('127.0.0.1', 51126) (judge1)
+INFO 2020-03-18 07:09:29,324 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:09:29,327 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:09:29,359 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:09:29,361 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:09:32,610 judgelist Free judges: 1
+INFO 2020-03-18 07:09:32,610 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 07:09:32,614 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 07:09:33,384 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 07:09:33,802 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 07:09:34,399 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/dmojsite/lib/python3.6/site-packages/dmoj/judge.py", line 164, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, meta, report=report)
+  File "/home/cuom1999/DMOJ/dmojsite/lib/python3.6/site-packages/dmoj/judge.py", line 116, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/home/cuom1999/DMOJ/dmojsite/lib/python3.6/site-packages/dmoj/judge.py", line 208, in grade_cases
+    result = grader.grade(case)
+  File "/home/cuom1999/DMOJ/dmojsite/lib/python3.6/site-packages/dmoj/graders/standard.py", line 41, in grade
+    check = self.check_result(case, result)
+  File "/home/cuom1999/DMOJ/dmojsite/lib/python3.6/site-packages/dmoj/graders/standard.py", line 90, in check_result
+    checker = case.checker()
+  File "/home/cuom1999/DMOJ/dmojsite/lib/python3.6/site-packages/dmoj/problem.py", line 345, in checker
+    checker = self.problem.load_checker(name)
+  File "/home/cuom1999/DMOJ/dmojsite/lib/python3.6/site-packages/dmoj/problem.py", line 152, in load_checker
+    self._checkers[name] = checker = load_module_from_file(os.path.join(get_problem_root(self.id), name))
+  File "/home/cuom1999/DMOJ/dmojsite/lib/python3.6/site-packages/dmoj/utils/module.py", line 18, in load_module_from_file
+    return load_module(name, f.read(), os.path.abspath(filename))
+  File "/home/cuom1999/DMOJ/dmojsite/lib/python3.6/site-packages/dmoj/utils/module.py", line 9, in load_module
+    exec(compile(code, filename or '<string>', 'exec'), mod.__dict__)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 69, in <module>
+    from dmoj.contrib import contrib_modules
+ModuleNotFoundError: No module named 'dmoj.contrib'
+
+INFO 2020-03-18 07:09:34,435 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 07:11:18,716 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:11:18,761 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:11:20,850 judgelist Free judges: 1
+INFO 2020-03-18 07:11:20,850 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 07:11:20,863 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 07:11:21,642 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 07:11:21,682 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 07:11:21,719 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/dmojsite/lib/python3.6/site-packages/dmoj/judge.py", line 164, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, meta, report=report)
+  File "/home/cuom1999/DMOJ/dmojsite/lib/python3.6/site-packages/dmoj/judge.py", line 116, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/home/cuom1999/DMOJ/dmojsite/lib/python3.6/site-packages/dmoj/judge.py", line 208, in grade_cases
+    result = grader.grade(case)
+  File "/home/cuom1999/DMOJ/dmojsite/lib/python3.6/site-packages/dmoj/graders/standard.py", line 41, in grade
+    check = self.check_result(case, result)
+  File "/home/cuom1999/DMOJ/dmojsite/lib/python3.6/site-packages/dmoj/graders/standard.py", line 90, in check_result
+    checker = case.checker()
+  File "/home/cuom1999/DMOJ/dmojsite/lib/python3.6/site-packages/dmoj/problem.py", line 345, in checker
+    checker = self.problem.load_checker(name)
+  File "/home/cuom1999/DMOJ/dmojsite/lib/python3.6/site-packages/dmoj/problem.py", line 152, in load_checker
+    self._checkers[name] = checker = load_module_from_file(os.path.join(get_problem_root(self.id), name))
+  File "/home/cuom1999/DMOJ/dmojsite/lib/python3.6/site-packages/dmoj/utils/module.py", line 18, in load_module_from_file
+    return load_module(name, f.read(), os.path.abspath(filename))
+  File "/home/cuom1999/DMOJ/dmojsite/lib/python3.6/site-packages/dmoj/utils/module.py", line 9, in load_module
+    exec(compile(code, filename or '<string>', 'exec'), mod.__dict__)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 72, in <module>
+    from dmoj.utils.helper_files import compile_with_auxiliary_files, mktemp
+ModuleNotFoundError: No module named 'dmoj.utils.helper_files'
+
+INFO 2020-03-18 07:11:21,744 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 07:12:32,075 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:12:32,083 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:12:32,108 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:12:35,826 judgelist Free judges: 1
+INFO 2020-03-18 07:12:35,826 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 07:12:35,843 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 07:12:36,639 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 07:12:36,680 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 07:12:36,717 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/dmojsite/lib/python3.6/site-packages/dmoj/judge.py", line 164, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, meta, report=report)
+  File "/home/cuom1999/DMOJ/dmojsite/lib/python3.6/site-packages/dmoj/judge.py", line 116, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/home/cuom1999/DMOJ/dmojsite/lib/python3.6/site-packages/dmoj/judge.py", line 208, in grade_cases
+    result = grader.grade(case)
+  File "/home/cuom1999/DMOJ/dmojsite/lib/python3.6/site-packages/dmoj/graders/standard.py", line 41, in grade
+    check = self.check_result(case, result)
+  File "/home/cuom1999/DMOJ/dmojsite/lib/python3.6/site-packages/dmoj/graders/standard.py", line 104, in check_result
+    execution_time=result.execution_time)
+TypeError: check() got an unexpected keyword argument 'submission_source'
+
+INFO 2020-03-18 07:12:36,745 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 07:20:36,331 judgehandler Judge disconnected from: ('127.0.0.1', 51126)
+INFO 2020-03-18 07:26:21,728 judgehandler Judge connected from: ('127.0.0.1', 51310)
+INFO 2020-03-18 07:26:21,729 judgehandler Judge authenticated: ('127.0.0.1', 51310) (judge1)
+INFO 2020-03-18 07:26:28,864 judgelist Free judges: 1
+INFO 2020-03-18 07:26:28,864 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 07:26:28,874 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 07:26:29,648 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 07:26:29,677 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 07:26:30,245 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 166, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, report=report)
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 118, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 210, in grade_cases
+    result = grader.grade(case)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 28, in grade
+    check = self.check_result(case, result)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 76, in check_result
+    problem_id=self.problem.id)
+TypeError: check() got an unexpected keyword argument 'submission_source'
+
+INFO 2020-03-18 07:26:30,254 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 07:28:38,785 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:28:38,787 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:28:38,822 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:28:44,533 judgelist Free judges: 1
+INFO 2020-03-18 07:28:44,533 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 07:28:44,966 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 07:28:46,156 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 07:28:46,419 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 07:28:46,454 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 166, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, report=report)
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 118, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 210, in grade_cases
+    result = grader.grade(case)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 28, in grade
+    check = self.check_result(case, result)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 76, in check_result
+    problem_id=self.problem.id)
+TypeError: check() missing 2 required positional arguments: 'files' and 'lang'
+
+INFO 2020-03-18 07:28:46,464 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 07:28:46,887 judgelist Free judges: 1
+INFO 2020-03-18 07:28:46,887 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 07:28:46,897 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 07:28:47,673 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 07:28:47,729 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 07:28:47,778 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 166, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, report=report)
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 118, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 210, in grade_cases
+    result = grader.grade(case)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 28, in grade
+    check = self.check_result(case, result)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 76, in check_result
+    problem_id=self.problem.id)
+TypeError: check() missing 2 required positional arguments: 'files' and 'lang'
+
+INFO 2020-03-18 07:28:47,787 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 07:29:22,441 judgelist Free judges: 1
+INFO 2020-03-18 07:29:22,441 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 07:29:22,458 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 07:29:23,255 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 07:29:23,292 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 07:29:23,327 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 166, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, report=report)
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 118, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 210, in grade_cases
+    result = grader.grade(case)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 28, in grade
+    check = self.check_result(case, result)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 76, in check_result
+    problem_id=self.problem.id)
+TypeError: check() missing 2 required positional arguments: 'files' and 'lang'
+
+INFO 2020-03-18 07:29:23,337 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 07:29:30,109 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:29:30,112 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:29:30,521 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:29:30,530 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:29:33,459 judgelist Free judges: 1
+INFO 2020-03-18 07:29:33,459 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 07:29:34,354 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 07:29:35,122 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 07:29:35,195 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 07:29:35,258 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 166, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, report=report)
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 118, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 210, in grade_cases
+    result = grader.grade(case)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 28, in grade
+    check = self.check_result(case, result)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 76, in check_result
+    problem_id=self.problem.id)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 241, in check
+    executor = get_executor(files, lang, compiler_time_limit, problem_id)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 232, in get_executor
+    executor = compile_with_auxiliary_files(filenames, lang, compiler_time_limit)
+  File "/home/cuom1999/DMOJ/judge/dmoj/utils/helper_files.py", line 23, in compile_with_auxiliary_files
+    with open(filename, 'rb') as f:
+FileNotFoundError: [Errno 2] No such file or directory: '/home/cuom1999/DMOJ/problems/hinhvuong2/hinhvuong2'
+
+INFO 2020-03-18 07:29:35,287 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 07:30:11,310 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:30:11,312 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:30:11,345 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:30:14,360 judgelist Free judges: 1
+INFO 2020-03-18 07:30:14,360 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 07:30:14,376 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 07:30:15,172 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 07:30:15,214 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 07:31:04,768 judgelist Abort request: 78
+ERROR 2020-03-18 07:31:16,046 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 166, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, report=report)
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 118, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 210, in grade_cases
+    result = grader.grade(case)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 28, in grade
+    check = self.check_result(case, result)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 76, in check_result
+    problem_id=self.problem.id)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 256, in check
+    stderr=error)
+  File "/home/cuom1999/DMOJ/judge/dmoj/contrib/default.py", line 18, in parse_return_code
+    parse_helper_file_error(proc, executor, name, stderr, time_limit, memory_limit)
+  File "/home/cuom1999/DMOJ/judge/dmoj/utils/helper_files.py", line 81, in parse_helper_file_error
+    raise InternalError(error)
+dmoj.error.InternalError: checker timed out (> 20 seconds)
+
+INFO 2020-03-18 07:31:16,057 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 07:31:33,009 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:31:33,208 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:31:36,266 judgelist Abort request: 78
+INFO 2020-03-18 07:31:37,927 judgelist Free judges: 1
+INFO 2020-03-18 07:31:37,928 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 07:31:37,944 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 07:31:38,747 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 07:31:38,782 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 07:31:44,827 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 166, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, report=report)
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 118, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 210, in grade_cases
+    result = grader.grade(case)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 28, in grade
+    check = self.check_result(case, result)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 76, in check_result
+    problem_id=self.problem.id)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 256, in check
+    stderr=error)
+  File "/home/cuom1999/DMOJ/judge/dmoj/contrib/default.py", line 18, in parse_return_code
+    parse_helper_file_error(proc, executor, name, stderr, time_limit, memory_limit)
+  File "/home/cuom1999/DMOJ/judge/dmoj/utils/helper_files.py", line 81, in parse_helper_file_error
+    raise InternalError(error)
+dmoj.error.InternalError: checker timed out (> 2 seconds)
+
+INFO 2020-03-18 07:31:44,836 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 07:35:38,888 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:35:38,890 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:35:38,922 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:35:41,880 judgelist Free judges: 1
+INFO 2020-03-18 07:35:41,880 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 07:35:41,908 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 07:35:42,659 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 07:35:42,694 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 07:35:48,739 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 166, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, report=report)
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 118, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 210, in grade_cases
+    result = grader.grade(case)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 28, in grade
+    check = self.check_result(case, result)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 76, in check_result
+    problem_id=self.problem.id)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 256, in check
+    stderr=error)
+  File "/home/cuom1999/DMOJ/judge/dmoj/contrib/default.py", line 18, in parse_return_code
+    parse_helper_file_error(proc, executor, name, stderr, time_limit, memory_limit)
+  File "/home/cuom1999/DMOJ/judge/dmoj/utils/helper_files.py", line 81, in parse_helper_file_error
+    raise InternalError(error)
+dmoj.error.InternalError: checker timed out (> 2 seconds)
+
+INFO 2020-03-18 07:35:48,748 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 07:38:11,138 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:38:11,142 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:38:11,170 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:38:14,245 judgelist Free judges: 1
+INFO 2020-03-18 07:38:14,245 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 07:38:14,262 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 07:38:15,250 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 07:38:15,301 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 07:38:21,334 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 166, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, report=report)
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 118, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 210, in grade_cases
+    result = grader.grade(case)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 28, in grade
+    check = self.check_result(case, result)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 76, in check_result
+    problem_id=self.problem.id)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 256, in check
+    stderr=error)
+  File "/home/cuom1999/DMOJ/judge/dmoj/contrib/default.py", line 18, in parse_return_code
+    parse_helper_file_error(proc, executor, name, stderr, time_limit, memory_limit)
+  File "/home/cuom1999/DMOJ/judge/dmoj/utils/helper_files.py", line 81, in parse_helper_file_error
+    raise InternalError(error)
+dmoj.error.InternalError: checker timed out (> 2 seconds)
+
+INFO 2020-03-18 07:38:21,343 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 07:40:25,486 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:40:28,773 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:40:29,514 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:40:32,144 judgelist Free judges: 1
+INFO 2020-03-18 07:40:32,145 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 07:40:32,566 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 07:40:33,389 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 07:40:34,629 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 07:40:35,441 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 166, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, report=report)
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 118, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 210, in grade_cases
+    result = grader.grade(case)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 28, in grade
+    check = self.check_result(case, result)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 76, in check_result
+    problem_id=self.problem.id)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 241, in check
+    executor = get_executor(files, lang, compiler_time_limit, problem_id)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 232, in get_executor
+    executor = compile_with_auxiliary_files(filenames, lang, compiler_time_limit)
+  File "/home/cuom1999/DMOJ/judge/dmoj/utils/helper_files.py", line 53, in compile_with_auxiliary_files
+    executor = executor('_aux_file', None, aux_sources=sources, cached=True)
+  File "/home/cuom1999/DMOJ/judge/dmoj/executors/compiled_executor.py", line 63, in __call__
+    obj.compile()
+  File "/home/cuom1999/DMOJ/judge/dmoj/executors/compiled_executor.py", line 233, in compile
+    self.handle_compile_error(output)
+  File "/home/cuom1999/DMOJ/judge/dmoj/executors/compiled_executor.py", line 218, in handle_compile_error
+    raise CompileError(output)
+dmoj.error.CompileError: ain.cpp: In function ‘int main()’:
+ain.cpp:7:5: error: expected ‘;’ before ‘return’
+     return 0;
+     ^~~~~~
+
+
+INFO 2020-03-18 07:40:35,478 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 07:41:13,598 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:41:35,527 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:41:40,191 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:41:42,324 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:41:45,185 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:41:45,188 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:41:45,219 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:41:48,231 judgelist Free judges: 1
+INFO 2020-03-18 07:41:48,232 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 07:41:48,809 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 07:41:49,579 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 07:41:49,889 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 07:41:50,290 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 166, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, report=report)
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 118, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 210, in grade_cases
+    result = grader.grade(case)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 28, in grade
+    check = self.check_result(case, result)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 76, in check_result
+    problem_id=self.problem.id)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 241, in check
+    executor = get_executor(files, lang, compiler_time_limit, problem_id)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 232, in get_executor
+    executor = compile_with_auxiliary_files(filenames, lang, compiler_time_limit)
+  File "/home/cuom1999/DMOJ/judge/dmoj/utils/helper_files.py", line 53, in compile_with_auxiliary_files
+    executor = executor('_aux_file', None, aux_sources=sources, cached=True)
+  File "/home/cuom1999/DMOJ/judge/dmoj/executors/compiled_executor.py", line 63, in __call__
+    obj.compile()
+  File "/home/cuom1999/DMOJ/judge/dmoj/executors/compiled_executor.py", line 233, in compile
+    self.handle_compile_error(output)
+  File "/home/cuom1999/DMOJ/judge/dmoj/executors/compiled_executor.py", line 218, in handle_compile_error
+    raise CompileError(output)
+dmoj.error.CompileError: ain.cpp: In function ‘int main()’:
+ain.cpp:6:27: error: ‘endl’ was not declared in this scope
+     std::cout << "123" << endl;
+                           ^~~~
+ain.cpp:6:27: note: suggested alternative:
+In file included from /usr/include/c++/7/iostream:39:0
+                 from ain.cpp:1:
+/usr/include/c++/7/ostream:590:5: note:   ‘std::endl’
+     endl(basic_ostream<_CharT, _Traits>& __os)
+     ^~~~
+
+
+INFO 2020-03-18 07:41:50,323 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 07:41:57,299 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:41:59,529 judgelist Free judges: 1
+INFO 2020-03-18 07:41:59,529 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 07:41:59,533 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 07:42:00,291 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 07:42:00,327 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 07:42:00,534 judgehandler judge1: 2 test case(s) completed on: 78
+INFO 2020-03-18 07:42:00,606 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 07:42:00,606 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 07:43:44,755 judgelist Free judges: 1
+INFO 2020-03-18 07:43:44,756 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 07:43:44,772 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 07:43:45,592 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 07:43:45,634 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 07:43:45,683 judgehandler judge1: 2 test case(s) completed on: 78
+INFO 2020-03-18 07:43:45,775 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 07:43:45,776 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 07:43:46,806 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:43:46,864 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:43:46,872 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:43:50,289 judgelist Abort request: 78
+INFO 2020-03-18 07:43:53,236 judgelist Free judges: 1
+INFO 2020-03-18 07:43:53,237 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 07:43:53,253 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 07:43:54,060 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 07:43:54,905 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 07:43:55,672 judgehandler judge1: 2 test case(s) completed on: 78
+INFO 2020-03-18 07:43:57,412 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 07:43:57,412 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 07:46:22,031 judgelist Free judges: 1
+INFO 2020-03-18 07:46:22,032 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 07:46:22,050 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 07:46:22,994 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 07:46:23,224 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 07:46:23,261 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 07:46:23,338 judgehandler judge1: 1 test case(s) completed on: 78
+INFO 2020-03-18 07:46:23,425 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 07:46:23,426 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 07:46:23,944 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:46:24,002 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:46:30,148 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:46:30,156 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:46:30,523 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:46:33,679 judgelist Abort request: 78
+INFO 2020-03-18 07:46:36,257 judgelist Free judges: 1
+INFO 2020-03-18 07:46:36,258 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 07:46:36,276 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 07:46:37,036 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 07:46:37,386 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 07:46:37,811 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 166, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, report=report)
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 118, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 210, in grade_cases
+    result = grader.grade(case)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 28, in grade
+    check = self.check_result(case, result)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 76, in check_result
+    problem_id=self.problem.id)
+TypeError: check() got an unexpected keyword argument 'submission_source'
+
+INFO 2020-03-18 07:46:37,835 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 07:47:25,898 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:47:25,904 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:47:25,929 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:47:28,277 judgelist Free judges: 1
+INFO 2020-03-18 07:47:28,278 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 07:47:28,298 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 07:47:29,081 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 07:47:29,117 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 07:47:29,154 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 166, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, report=report)
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 118, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 210, in grade_cases
+    result = grader.grade(case)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 28, in grade
+    check = self.check_result(case, result)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 76, in check_result
+    problem_id=self.problem.id)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 14, in check
+    **kwargs)
+TypeError: check() got multiple values for keyword argument 'problem_id'
+
+INFO 2020-03-18 07:47:29,168 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 07:49:30,893 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:49:30,901 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:49:30,938 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:49:30,945 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:49:36,156 judgelist Free judges: 1
+INFO 2020-03-18 07:49:36,157 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 07:49:36,222 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 07:49:37,025 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 07:49:37,065 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 07:49:37,109 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 166, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, report=report)
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 118, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 210, in grade_cases
+    result = grader.grade(case)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 28, in grade
+    check = self.check_result(case, result)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 76, in check_result
+    problem_id=self.problem.id)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 14, in check
+    *args,
+NameError: name 'args' is not defined
+
+INFO 2020-03-18 07:49:37,140 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 07:49:47,958 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:49:47,960 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:49:48,181 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:49:48,190 judgehandler judge1: Updated problem list
+INFO 2020-03-18 07:49:50,142 judgelist Free judges: 1
+INFO 2020-03-18 07:49:50,143 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 07:49:50,146 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 07:49:50,900 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 07:49:50,940 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 07:49:50,978 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 166, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, report=report)
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 118, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 210, in grade_cases
+    result = grader.grade(case)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 28, in grade
+    check = self.check_result(case, result)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 76, in check_result
+    problem_id=self.problem.id)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 14, in check
+    **kwargs)
+TypeError: check() got multiple values for keyword argument 'problem_id'
+
+INFO 2020-03-18 07:49:51,011 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 09:06:45,207 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:06:45,216 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:06:45,251 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:06:48,445 judgelist Free judges: 1
+INFO 2020-03-18 09:06:48,445 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 09:06:48,462 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 09:06:49,239 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 09:06:49,449 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 09:06:49,663 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 166, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, report=report)
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 118, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 210, in grade_cases
+    result = grader.grade(case)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 28, in grade
+    check = self.check_result(case, result)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 76, in check_result
+    problem_id=self.problem.id)
+  File "/home/cuom1999/DMOJ/problems/hinhvuong2/cppvalidator.py", line 13, in check
+    **kwargs)
+TypeError: check() got multiple values for keyword argument 'problem_id'
+
+INFO 2020-03-18 09:06:49,697 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 09:07:49,886 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:07:49,889 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:07:49,932 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:07:52,740 judgelist Free judges: 1
+INFO 2020-03-18 09:07:52,740 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 09:07:52,760 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 09:07:53,583 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 09:07:53,638 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 09:07:53,697 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 166, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, report=report)
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 118, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 210, in grade_cases
+    result = grader.grade(case)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 28, in grade
+    check = self.check_result(case, result)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 62, in check_result
+    checker = case.checker()
+  File "/home/cuom1999/DMOJ/judge/dmoj/problem.py", line 339, in checker
+    raise InvalidInitException('malformed checker: no check method found')
+dmoj.config.InvalidInitException: malformed checker: no check method found
+
+INFO 2020-03-18 09:07:53,707 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 09:11:32,702 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:11:32,704 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:11:32,736 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:11:32,738 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:11:35,020 judgelist Free judges: 1
+INFO 2020-03-18 09:11:35,020 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 09:11:35,027 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 09:11:36,026 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 09:11:36,100 judgehandler judge1: Grading has begun on: 78
+ERROR 2020-03-18 09:11:36,866 judgehandler Judge judge1 failed while handling submission 78
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/site/judge/bridge/judgehandler.py", line 230, in on_internal_error
+    raise ValueError('\n\n' + packet['message'])
+ValueError: 
+
+Traceback (most recent call last):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 166, in grading_cleanup_wrapper
+    self._block_and_grade(problem, language, source, short_circuit, report=report)
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 118, in _block_and_grade
+    short_circuit=short_circuit):
+  File "/home/cuom1999/DMOJ/judge/dmoj/judge.py", line 210, in grade_cases
+    result = grader.grade(case)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 28, in grade
+    check = self.check_result(case, result)
+  File "/home/cuom1999/DMOJ/judge/dmoj/graders/standard.py", line 76, in check_result
+    problem_id=self.problem.id)
+TypeError: check() missing 2 required positional arguments: 'files' and 'lang'
+
+INFO 2020-03-18 09:11:36,903 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 09:17:00,823 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:17:00,831 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:17:00,857 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:17:00,867 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:17:03,897 judgelist Free judges: 1
+INFO 2020-03-18 09:17:03,898 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 09:17:04,144 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 09:17:04,931 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 09:17:05,672 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 09:17:06,072 judgehandler judge1: 2 test case(s) completed on: 78
+INFO 2020-03-18 09:17:06,713 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 09:17:06,714 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 09:17:30,720 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:17:38,802 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:17:39,907 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:18:17,425 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:18:17,427 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:18:23,341 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:18:36,697 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:18:36,699 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:18:54,323 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:18:54,326 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:18:54,359 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:18:57,278 judgelist Free judges: 1
+INFO 2020-03-18 09:18:57,279 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 09:18:57,296 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 09:18:58,096 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 09:18:58,137 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 09:18:58,858 judgehandler judge1: 2 test case(s) completed on: 78
+INFO 2020-03-18 09:18:58,933 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 09:18:58,933 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 09:19:10,228 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:19:28,294 judgelist Free judges: 1
+INFO 2020-03-18 09:19:28,295 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 09:19:28,312 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 09:19:29,122 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 09:19:29,164 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 09:19:29,896 judgehandler judge1: 2 test case(s) completed on: 78
+INFO 2020-03-18 09:19:29,988 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 09:19:29,988 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 09:20:32,052 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:20:33,459 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:20:38,356 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:21:07,789 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:21:12,246 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:21:12,723 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:21:40,993 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:21:47,484 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:21:47,487 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:22:07,187 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:22:07,195 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:22:09,140 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:22:09,148 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:22:12,992 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:22:17,963 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:22:17,972 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:22:17,996 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:22:22,377 judgelist Free judges: 1
+INFO 2020-03-18 09:22:22,377 judgelist Dispatched submission 78 to: judge1
+INFO 2020-03-18 09:22:22,394 judgehandler Submission acknowledged: 78
+INFO 2020-03-18 09:22:23,261 judgehandler judge1: Submission generated compiler messages: 78
+INFO 2020-03-18 09:22:23,300 judgehandler judge1: Grading has begun on: 78
+INFO 2020-03-18 09:22:24,075 judgehandler judge1: 2 test case(s) completed on: 78
+INFO 2020-03-18 09:22:24,831 judgehandler judge1: Grading has ended on: 78
+INFO 2020-03-18 09:22:24,831 judgelist Judge available after grading 78: judge1
+INFO 2020-03-18 09:22:46,386 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:23:14,996 judgelist Free judges: 1
+INFO 2020-03-18 09:23:14,996 judgelist Dispatched submission 79 to: judge1
+INFO 2020-03-18 09:23:15,013 judgehandler Submission acknowledged: 79
+INFO 2020-03-18 09:23:15,792 judgehandler judge1: Submission generated compiler messages: 79
+INFO 2020-03-18 09:23:15,828 judgehandler judge1: Grading has begun on: 79
+INFO 2020-03-18 09:23:16,564 judgehandler judge1: 2 test case(s) completed on: 79
+INFO 2020-03-18 09:23:16,643 judgehandler judge1: Grading has ended on: 79
+INFO 2020-03-18 09:23:16,643 judgelist Judge available after grading 79: judge1
+INFO 2020-03-18 09:24:30,974 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:24:33,179 judgelist Free judges: 1
+INFO 2020-03-18 09:24:33,179 judgelist Dispatched submission 79 to: judge1
+INFO 2020-03-18 09:24:33,184 judgehandler Submission acknowledged: 79
+INFO 2020-03-18 09:24:33,951 judgehandler judge1: Submission generated compiler messages: 79
+INFO 2020-03-18 09:24:33,988 judgehandler judge1: Grading has begun on: 79
+INFO 2020-03-18 09:24:34,744 judgehandler judge1: 2 test case(s) completed on: 79
+INFO 2020-03-18 09:24:34,829 judgehandler judge1: Grading has ended on: 79
+INFO 2020-03-18 09:24:34,829 judgelist Judge available after grading 79: judge1
+INFO 2020-03-18 09:25:37,373 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:25:37,529 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:25:55,589 judgelist Free judges: 1
+INFO 2020-03-18 09:25:55,589 judgelist Dispatched submission 79 to: judge1
+INFO 2020-03-18 09:25:55,594 judgehandler Submission acknowledged: 79
+INFO 2020-03-18 09:25:56,443 judgehandler judge1: Submission generated compiler messages: 79
+INFO 2020-03-18 09:25:56,496 judgehandler judge1: Grading has begun on: 79
+INFO 2020-03-18 09:25:57,449 judgehandler judge1: 100 test case(s) completed on: 79
+INFO 2020-03-18 09:25:58,999 judgehandler judge1: Grading has ended on: 79
+INFO 2020-03-18 09:25:59,000 judgelist Judge available after grading 79: judge1
+INFO 2020-03-18 09:26:21,941 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:26:21,970 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:26:22,069 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:26:49,725 judgelist Free judges: 1
+INFO 2020-03-18 09:26:49,725 judgelist Dispatched submission 79 to: judge1
+INFO 2020-03-18 09:26:49,744 judgehandler Submission acknowledged: 79
+INFO 2020-03-18 09:26:50,497 judgehandler judge1: Submission generated compiler messages: 79
+INFO 2020-03-18 09:26:51,407 judgehandler judge1: Grading has begun on: 79
+INFO 2020-03-18 09:26:51,576 judgehandler judge1: 1 test case(s) completed on: 79
+INFO 2020-03-18 09:26:52,516 judgehandler judge1: 99 test case(s) completed on: 79
+INFO 2020-03-18 09:26:54,080 judgehandler judge1: Grading has ended on: 79
+INFO 2020-03-18 09:26:54,081 judgelist Judge available after grading 79: judge1
+INFO 2020-03-18 09:27:50,426 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:27:50,454 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:27:50,567 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:28:14,711 judgelist Free judges: 1
+INFO 2020-03-18 09:28:14,711 judgelist Dispatched submission 79 to: judge1
+INFO 2020-03-18 09:28:14,721 judgehandler Submission acknowledged: 79
+INFO 2020-03-18 09:28:15,491 judgehandler judge1: Submission generated compiler messages: 79
+INFO 2020-03-18 09:28:15,546 judgehandler judge1: Grading has begun on: 79
+INFO 2020-03-18 09:28:15,617 judgehandler judge1: 6 test case(s) completed on: 79
+INFO 2020-03-18 09:28:15,869 judgehandler judge1: 5 test case(s) completed on: 79
+INFO 2020-03-18 09:28:16,122 judgehandler judge1: 3 test case(s) completed on: 79
+INFO 2020-03-18 09:28:16,373 judgehandler judge1: 11 test case(s) completed on: 79
+INFO 2020-03-18 09:28:16,624 judgehandler judge1: 13 test case(s) completed on: 79
+INFO 2020-03-18 09:28:16,874 judgehandler judge1: 10 test case(s) completed on: 79
+INFO 2020-03-18 09:28:17,125 judgehandler judge1: 11 test case(s) completed on: 79
+INFO 2020-03-18 09:28:17,378 judgehandler judge1: 6 test case(s) completed on: 79
+INFO 2020-03-18 09:28:17,635 judgehandler judge1: 5 test case(s) completed on: 79
+INFO 2020-03-18 09:28:18,746 judgehandler judge1: 1 test case(s) completed on: 79
+INFO 2020-03-18 09:28:18,937 judgehandler judge1: 1 test case(s) completed on: 79
+INFO 2020-03-18 09:28:19,055 judgehandler judge1: 2 test case(s) completed on: 79
+INFO 2020-03-18 09:28:19,210 judgehandler judge1: 1 test case(s) completed on: 79
+INFO 2020-03-18 09:28:19,354 judgehandler judge1: 4 test case(s) completed on: 79
+INFO 2020-03-18 09:28:19,497 judgehandler judge1: 6 test case(s) completed on: 79
+INFO 2020-03-18 09:28:19,742 judgehandler judge1: 7 test case(s) completed on: 79
+INFO 2020-03-18 09:28:19,886 judgehandler judge1: 7 test case(s) completed on: 79
+INFO 2020-03-18 09:28:20,875 judgehandler judge1: 1 test case(s) completed on: 79
+INFO 2020-03-18 09:28:21,244 judgehandler judge1: Grading has ended on: 79
+INFO 2020-03-18 09:28:21,245 judgelist Judge available after grading 79: judge1
+INFO 2020-03-18 09:28:52,121 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:28:52,129 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:28:54,084 judgelist Free judges: 1
+INFO 2020-03-18 09:28:54,084 judgelist Dispatched submission 79 to: judge1
+INFO 2020-03-18 09:28:54,121 judgehandler Submission acknowledged: 79
+INFO 2020-03-18 09:28:55,310 judgehandler judge1: Submission generated compiler messages: 79
+INFO 2020-03-18 09:28:55,359 judgehandler judge1: Grading has begun on: 79
+INFO 2020-03-18 09:28:56,201 judgehandler judge1: 3 test case(s) completed on: 79
+INFO 2020-03-18 09:28:56,453 judgehandler judge1: 11 test case(s) completed on: 79
+INFO 2020-03-18 09:28:56,704 judgehandler judge1: 12 test case(s) completed on: 79
+INFO 2020-03-18 09:28:56,959 judgehandler judge1: 11 test case(s) completed on: 79
+INFO 2020-03-18 09:28:57,211 judgehandler judge1: 10 test case(s) completed on: 79
+INFO 2020-03-18 09:28:57,463 judgehandler judge1: 10 test case(s) completed on: 79
+INFO 2020-03-18 09:28:57,715 judgehandler judge1: 8 test case(s) completed on: 79
+INFO 2020-03-18 09:28:57,966 judgehandler judge1: 4 test case(s) completed on: 79
+INFO 2020-03-18 09:28:58,217 judgehandler judge1: 7 test case(s) completed on: 79
+INFO 2020-03-18 09:28:59,099 judgehandler judge1: 4 test case(s) completed on: 79
+INFO 2020-03-18 09:28:59,243 judgehandler judge1: 1 test case(s) completed on: 79
+INFO 2020-03-18 09:28:59,386 judgehandler judge1: 1 test case(s) completed on: 79
+INFO 2020-03-18 09:28:59,530 judgehandler judge1: 2 test case(s) completed on: 79
+INFO 2020-03-18 09:28:59,686 judgehandler judge1: 9 test case(s) completed on: 79
+INFO 2020-03-18 09:28:59,843 judgehandler judge1: 7 test case(s) completed on: 79
+INFO 2020-03-18 09:29:00,058 judgehandler judge1: Grading has ended on: 79
+INFO 2020-03-18 09:29:00,058 judgelist Judge available after grading 79: judge1
+INFO 2020-03-18 09:32:55,663 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:32:55,665 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:32:55,742 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:33:13,368 judgelist Free judges: 1
+INFO 2020-03-18 09:33:13,369 judgelist Dispatched submission 79 to: judge1
+INFO 2020-03-18 09:33:13,385 judgehandler Submission acknowledged: 79
+INFO 2020-03-18 09:33:14,507 judgehandler judge1: Submission generated compiler messages: 79
+INFO 2020-03-18 09:33:14,555 judgehandler judge1: Grading has begun on: 79
+INFO 2020-03-18 09:33:14,625 judgehandler judge1: 3 test case(s) completed on: 79
+INFO 2020-03-18 09:33:14,841 judgehandler judge1: 11 test case(s) completed on: 79
+INFO 2020-03-18 09:33:15,094 judgehandler judge1: 11 test case(s) completed on: 79
+INFO 2020-03-18 09:33:15,345 judgehandler judge1: 10 test case(s) completed on: 79
+INFO 2020-03-18 09:33:15,596 judgehandler judge1: 11 test case(s) completed on: 79
+INFO 2020-03-18 09:33:15,852 judgehandler judge1: 5 test case(s) completed on: 79
+INFO 2020-03-18 09:33:16,105 judgehandler judge1: 11 test case(s) completed on: 79
+INFO 2020-03-18 09:33:16,356 judgehandler judge1: 8 test case(s) completed on: 79
+INFO 2020-03-18 09:33:16,607 judgehandler judge1: 9 test case(s) completed on: 79
+INFO 2020-03-18 09:33:16,858 judgehandler judge1: 9 test case(s) completed on: 79
+INFO 2020-03-18 09:33:17,732 judgehandler judge1: 2 test case(s) completed on: 79
+INFO 2020-03-18 09:33:19,972 judgehandler judge1: 2 test case(s) completed on: 79
+INFO 2020-03-18 09:33:20,276 judgehandler judge1: 1 test case(s) completed on: 79
+INFO 2020-03-18 09:33:20,420 judgehandler judge1: 1 test case(s) completed on: 79
+INFO 2020-03-18 09:33:20,564 judgehandler judge1: 1 test case(s) completed on: 79
+INFO 2020-03-18 09:33:20,744 judgehandler judge1: 2 test case(s) completed on: 79
+INFO 2020-03-18 09:33:21,706 judgehandler judge1: 1 test case(s) completed on: 79
+INFO 2020-03-18 09:33:21,850 judgehandler judge1: 1 test case(s) completed on: 79
+INFO 2020-03-18 09:33:22,924 judgehandler judge1: 1 test case(s) completed on: 79
+INFO 2020-03-18 09:33:24,645 judgehandler judge1: Grading has ended on: 79
+INFO 2020-03-18 09:33:24,646 judgelist Judge available after grading 79: judge1
+INFO 2020-03-18 09:34:10,424 judgelist Free judges: 1
+INFO 2020-03-18 09:34:10,424 judgelist Dispatched submission 79 to: judge1
+INFO 2020-03-18 09:34:10,432 judgehandler Submission acknowledged: 79
+INFO 2020-03-18 09:34:11,260 judgehandler judge1: Submission generated compiler messages: 79
+INFO 2020-03-18 09:34:11,311 judgehandler judge1: Grading has begun on: 79
+INFO 2020-03-18 09:34:11,445 judgehandler judge1: 9 test case(s) completed on: 79
+INFO 2020-03-18 09:34:11,697 judgehandler judge1: 12 test case(s) completed on: 79
+INFO 2020-03-18 09:34:11,948 judgehandler judge1: 11 test case(s) completed on: 79
+INFO 2020-03-18 09:34:12,200 judgehandler judge1: 10 test case(s) completed on: 79
+INFO 2020-03-18 09:34:12,451 judgehandler judge1: 10 test case(s) completed on: 79
+INFO 2020-03-18 09:34:12,703 judgehandler judge1: 9 test case(s) completed on: 79
+INFO 2020-03-18 09:34:12,955 judgehandler judge1: 10 test case(s) completed on: 79
+INFO 2020-03-18 09:34:13,207 judgehandler judge1: 6 test case(s) completed on: 79
+INFO 2020-03-18 09:34:13,478 judgehandler judge1: 4 test case(s) completed on: 79
+INFO 2020-03-18 09:34:14,414 judgehandler judge1: 5 test case(s) completed on: 79
+INFO 2020-03-18 09:34:14,635 judgehandler judge1: 2 test case(s) completed on: 79
+INFO 2020-03-18 09:34:14,786 judgehandler judge1: 3 test case(s) completed on: 79
+INFO 2020-03-18 09:34:15,008 judgehandler judge1: 8 test case(s) completed on: 79
+INFO 2020-03-18 09:34:15,240 judgehandler judge1: 1 test case(s) completed on: 79
+INFO 2020-03-18 09:34:15,384 judgehandler judge1: Grading has ended on: 79
+INFO 2020-03-18 09:34:15,385 judgelist Judge available after grading 79: judge1
+INFO 2020-03-18 09:34:31,767 judgelist Free judges: 1
+INFO 2020-03-18 09:34:31,767 judgelist Dispatched submission 80 to: judge1
+INFO 2020-03-18 09:34:31,783 judgehandler Submission acknowledged: 80
+INFO 2020-03-18 09:34:32,599 judgehandler judge1: Submission generated compiler messages: 80
+INFO 2020-03-18 09:34:32,660 judgehandler judge1: Grading has begun on: 80
+INFO 2020-03-18 09:34:32,843 judgehandler judge1: 5 test case(s) completed on: 80
+INFO 2020-03-18 09:34:33,104 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:34:33,596 judgehandler judge1: 5 test case(s) completed on: 80
+INFO 2020-03-18 09:34:35,937 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:34:37,732 judgehandler judge1: 2 test case(s) completed on: 80
+INFO 2020-03-18 09:34:40,781 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:34:43,157 judgehandler judge1: 2 test case(s) completed on: 80
+INFO 2020-03-18 09:34:44,884 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:34:47,250 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:34:47,955 judgehandler judge1: 2 test case(s) completed on: 80
+INFO 2020-03-18 09:34:48,074 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:34:48,192 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:34:48,385 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:34:48,523 judgehandler judge1: 2 test case(s) completed on: 80
+INFO 2020-03-18 09:34:48,826 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:34:49,042 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:34:49,950 judgehandler judge1: 3 test case(s) completed on: 80
+INFO 2020-03-18 09:34:50,093 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:34:50,237 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:34:50,381 judgehandler judge1: 2 test case(s) completed on: 80
+INFO 2020-03-18 09:34:50,525 judgehandler judge1: 2 test case(s) completed on: 80
+INFO 2020-03-18 09:34:50,668 judgehandler judge1: 2 test case(s) completed on: 80
+INFO 2020-03-18 09:34:50,811 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:34:50,983 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:34:51,816 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:34:52,031 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:34:52,175 judgehandler judge1: 2 test case(s) completed on: 80
+INFO 2020-03-18 09:34:52,318 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:34:52,462 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:34:52,606 judgehandler judge1: 2 test case(s) completed on: 80
+INFO 2020-03-18 09:34:52,749 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:34:52,980 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:34:53,913 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:34:54,087 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:34:54,228 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:34:54,321 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:34:54,415 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:34:54,510 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:34:54,603 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:34:54,697 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:34:54,791 judgehandler judge1: 2 test case(s) completed on: 80
+INFO 2020-03-18 09:34:54,884 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:34:55,118 judgehandler judge1: 2 test case(s) completed on: 80
+INFO 2020-03-18 09:34:55,283 judgehandler judge1: 5 test case(s) completed on: 80
+INFO 2020-03-18 09:34:56,216 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:34:56,595 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:34:56,791 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:34:57,058 judgehandler judge1: 2 test case(s) completed on: 80
+INFO 2020-03-18 09:34:58,604 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:35:00,140 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:35:00,642 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:35:01,879 judgehandler judge1: 2 test case(s) completed on: 80
+INFO 2020-03-18 09:35:02,028 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:35:03,323 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:35:04,960 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:35:05,098 judgehandler judge1: 1 test case(s) completed on: 80
+INFO 2020-03-18 09:35:05,178 judgehandler judge1: 7 test case(s) completed on: 80
+INFO 2020-03-18 09:35:05,258 judgehandler judge1: 4 test case(s) completed on: 80
+INFO 2020-03-18 09:35:05,327 judgehandler judge1: 4 test case(s) completed on: 80
+INFO 2020-03-18 09:35:05,396 judgehandler judge1: 2 test case(s) completed on: 80
+INFO 2020-03-18 09:35:05,488 judgehandler judge1: Grading has ended on: 80
+INFO 2020-03-18 09:35:05,488 judgelist Judge available after grading 80: judge1
+INFO 2020-03-18 09:35:40,128 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:35:40,188 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:36:11,729 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:36:11,832 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:36:11,842 judgehandler judge1: Updated problem list
+INFO 2020-03-18 09:47:23,140 judgehandler Judge disconnected from: ('127.0.0.1', 51310)
+INFO 2020-03-18 09:47:33,189 judgehandler Judge connected from: ('127.0.0.1', 53378)
+INFO 2020-03-18 09:47:33,264 judgehandler Judge authenticated: ('127.0.0.1', 53378) (judge1)
+INFO 2020-03-18 12:26:36,347 judgehandler judge1: Updated problem list
+INFO 2020-03-18 12:26:45,389 judgehandler judge1: Updated problem list
diff --git a/README.md b/README.md
index 2f18197..a742684 100644
--- a/README.md
+++ b/README.md
@@ -20,3 +20,6 @@ python dmojauto-conf
  - modify .po file
  - python manage.py compilemessages
  - python manage.py compilejsi18n
+
+###8. Run chat server:
+docker run -p 6379:6379 -d redis:2.8
diff --git a/chat_box/consumers.py b/chat_box/consumers.py
index d200968..1588053 100644
--- a/chat_box/consumers.py
+++ b/chat_box/consumers.py
@@ -1,11 +1,17 @@
 import json
-
 from channels.generic.websocket import AsyncWebsocketConsumer
+from .models import Message
+from .views import format_time
+from django.urls import reverse
+from django.http import HttpResponse, HttpResponseRedirect
+
+
+from judge.models.profile import Profile
 
 
 class ChatConsumer(AsyncWebsocketConsumer):
     async def connect(self):
-        self.room_name = 'common'
+        self.room_name = 'room'
         self.room_group_name = 'chat_%s' % self.room_name
 
         # Join room group
@@ -27,6 +33,8 @@ class ChatConsumer(AsyncWebsocketConsumer):
     async def receive(self, text_data):
         text_data_json = json.loads(text_data)
         message = text_data_json['message']
+        time = save_data_and_get_time(message)
+        message['time'] = format_time(time)
 
         # Send message to room group
         await self.channel_layer.group_send(
@@ -40,8 +48,17 @@ class ChatConsumer(AsyncWebsocketConsumer):
     # Receive message from room group
     async def chat_message(self, event):
         message = event['message']
-
         # Send message to WebSocket
         await self.send(text_data=json.dumps({
             'message': message,
         }))
+
+
+# return time
+def save_data_and_get_time(message):
+    new_message = Message(body=message['body'],
+                          author=Profile.objects
+                                        .get(pk=message['author_id']),
+                          )
+    new_message.save()
+    return new_message.time
diff --git a/chat_box/models.py b/chat_box/models.py
index 297b921..b895f8d 100644
--- a/chat_box/models.py
+++ b/chat_box/models.py
@@ -1,5 +1,3 @@
-# based on https://github.com/narrowfail/django-channels-chat
-
 from asgiref.sync import async_to_sync
 from channels.layers import get_channel_layer
 from django.db import models
@@ -18,25 +16,10 @@ class Message(models.Model):
     time = models.DateTimeField(verbose_name=_('posted time'), auto_now_add=True)
     body = models.TextField(verbose_name=_('body of comment'), max_length=8192)
 
-    def notify_ws_clients(self):
-        # inform client that there is a new message
-        notification = {
-            'type': 'recieve_group_message',
-            'message': '{}'.format(self.id)
-        }
-        channel_layer = get_channel_layer()
-        # print("user.id {}".format(self.user.id))
-        # print("user.id {}".format(self.recipient.id))
-
-        async_to_sync(channel_layer.group_send)("{}".format(self.user.id), notification)
-        async_to_sync(channel_layer.group_send)("{}".format(self.recipient.id), notification)
-
     def save(self, *args, **kwargs):
         new_message = self.id
         self.body = self.body.strip()
         super(Message, self).save(*args, **kwargs)
-        if new_message is None:
-            self.notify_ws_clients()
 
     class Meta:
         app_label = 'chat_box'
diff --git a/chat_box/routing.py b/chat_box/routing.py
index f420f4f..6a8fe06 100644
--- a/chat_box/routing.py
+++ b/chat_box/routing.py
@@ -4,4 +4,4 @@ from . import consumers
 
 websocket_urlpatterns = [
     re_path(r'ws/chat/', consumers.ChatConsumer),
-]
+]
\ No newline at end of file
diff --git a/chat_box/views.py b/chat_box/views.py
index a032014..294f535 100644
--- a/chat_box/views.py
+++ b/chat_box/views.py
@@ -1,7 +1,50 @@
-from django.shortcuts import render
 from django.utils.translation import gettext as _
-from django.views import View
+from django.views.generic import ListView
+from django.http import HttpResponse, HttpResponseRedirect
+from django.shortcuts import render
+from django.core.paginator import Paginator
+from django.urls import reverse
+
+from judge.jinja2.gravatar import gravatar
+from .models import Message
+import json
 
 
-class ChatView(View):
-    template_name = 'chat.html'
\ No newline at end of file
+def format_time(time):
+    return time.strftime('%H:%M %p  %d-%m-%Y')
+
+
+def format_messages(messages):
+    msg_list = [{
+        'time': format_time(msg.time),
+        'author': str(msg.author),
+        'body': msg.body,
+        'image': gravatar(msg.author, 32),
+    } for msg in messages]
+    return json.dumps(msg_list)
+
+
+class ChatView(ListView):
+    model = Message
+    context_object_name = 'message'
+    template_name = 'chat/chat.html'
+    title = _('Chat Box')
+    paginate_by = 50
+    paginator = Paginator(Message.objects.all(), paginate_by)
+
+    def get(self, request, *args, **kwargs):
+        page = request.GET.get('page')
+        if (page == None):
+            return super().get(request, *args, **kwargs)
+
+        cur_page = self.paginator.get_page(page)
+        return HttpResponse(format_messages(cur_page.object_list))
+
+    def get_context_data(self, **kwargs):
+        context = super().get_context_data(**kwargs)
+        context['title'] = self.title
+
+        for msg in context['message']:
+            msg.time = format_time(msg.time)
+
+        return context
diff --git a/dmoj/local_settings.py b/dmoj/local_settings.py
deleted file mode 100755
index 703b965..0000000
--- a/dmoj/local_settings.py
+++ /dev/null
@@ -1,314 +0,0 @@
-#####################################
-########## Django settings ##########
-#####################################
-# See <https://docs.djangoproject.com/en/1.11/ref/settings/>
-# for more info and help. If you are stuck, you can try Googling about
-# Django - many of these settings below have external documentation about them.
-#
-# The settings listed here are of special interest in configuring the site.
-
-# SECURITY WARNING: keep the secret key used in production secret!
-# You may use <http://www.miniwebtool.com/django-secret-key-generator/>
-# to generate this key.
-SECRET_KEY = 's(8*xdlaiy4r@09cidu#)h%%iey39099g=hp(#+kzz+7vefs4u'
-
-# SECURITY WARNING: don't run with debug turned on in production!
-DEBUG = True  # Change to False once you are done with runserver testing.
-
-# Uncomment and set to the domain names this site is intended to serve.
-# You must do this once you set DEBUG to False.
-ALLOWED_HOSTS = ['0.0.0.0']
-
-# Optional apps that DMOJ can make use of.
-INSTALLED_APPS += (
-)
-
-#path to problem folder
-DMOJ_PROBLEM_DATA_ROOT = '/home/Projects/CP/LQDJudge/problems'
-
-# Caching. You can use memcached or redis instead.
-# Documentation: <https://docs.djangoproject.com/en/1.11/topics/cache/>
-CACHES = {
-    'default': {
-        'BACKEND': 'django.core.cache.backends.locmem.LocMemCache'
-    }
-}
-
-# Your database credentials. Only MySQL is supported by DMOJ.
-# Documentation: <https://docs.djangoproject.com/en/1.11/ref/databases/>
-DATABASES = {
-     'default': {
-        'ENGINE': 'django.db.backends.mysql', 
-        'NAME': 'dmoj',
-        'USER': 'dmoj',
-        'PASSWORD': 'admintl97p1',
-        'HOST': '127.0.0.1',
-        'OPTIONS': {
-            'charset': 'utf8mb4',
-            'sql_mode': 'STRICT_TRANS_TABLES,NO_ENGINE_SUBSTITUTION',
-        },
-    }
-}
-
-# Sessions.
-# Documentation: <https://docs.djangoproject.com/en/1.11/topics/http/sessions/>
-#SESSION_ENGINE = 'django.contrib.sessions.backends.cached_db'
-
-# Internationalization.
-# Documentation: <https://docs.djangoproject.com/en/1.11/topics/i18n/>
-LANGUAGE_CODE = 'vi'
-DEFAULT_USER_TIME_ZONE = 'Asia/Ho_Chi_Minh'
-USE_I18N = True
-USE_L10N = True
-USE_TZ = True
-
-## django-compressor settings, for speeding up page load times by minifying CSS and JavaScript files.
-# Documentation: https://django-compressor.readthedocs.io/en/latest/
-COMPRESS_OUTPUT_DIR = 'cache'
-COMPRESS_CSS_FILTERS = [
-    'compressor.filters.css_default.CssAbsoluteFilter',
-    'compressor.filters.cssmin.CSSMinFilter',
-]
-COMPRESS_JS_FILTERS = ['compressor.filters.jsmin.JSMinFilter']
-COMPRESS_STORAGE = 'compressor.storage.GzipCompressorFileStorage'
-STATICFILES_FINDERS += ('compressor.finders.CompressorFinder',)
-
-
-#########################################
-########## Email configuration ##########
-#########################################
-# See <https://docs.djangoproject.com/en/1.11/topics/email/#email-backends>
-# for more documentation. You should follow the information there to define 
-# your email settings.
-
-# Use this if you are just testing.
-EMAIL_BACKEND = 'django.core.mail.backends.console.EmailBackend'
-
-# The following block is included for your convenience, if you want 
-# to use Gmail.
-#EMAIL_USE_TLS = True
-#EMAIL_HOST = 'smtp.gmail.com'
-#EMAIL_HOST_USER = '<your account>@gmail.com'
-#EMAIL_HOST_PASSWORD = '<your password>'
-#EMAIL_PORT = 587
-
-# To use Mailgun, uncomment this block.
-# You will need to run `pip install django-mailgun` for to get `MailgunBackend`.
-#EMAIL_BACKEND = 'django_mailgun.MailgunBackend'
-#MAILGUN_ACCESS_KEY = '<your Mailgun access key>'
-#MAILGUN_SERVER_NAME = '<your Mailgun domain>'
-
-# You can also use Sendgrid, with `pip install sendgrid-django`.
-#EMAIL_BACKEND = 'sgbackend.SendGridBackend'
-#SENDGRID_API_KEY = '<Your SendGrid API Key>'
-
-# The DMOJ site is able to notify administrators of errors via email,
-# if configured as shown below.
-
-# A tuple of (name, email) pairs that specifies those who will be mailed
-# when the server experiences an error when DEBUG = False.
-ADMINS = (
-    ('luongd', 'doannguyenthanhluong@gmail.com'),
-)
-
-# The sender for the aforementioned emails.
-SERVER_EMAIL = 'LQDOJ: Le Quy Don Online Judge <errors@lqdoj.com>'
-
-
-##################################################
-########### Static files configuration. ##########
-##################################################
-# See <https://docs.djangoproject.com/en/1.11/howto/static-files/>.
-
-# Change this to somewhere more permanent., especially if you are using a 
-# webserver to serve the static files. This is the directory where all the 
-# static files DMOJ uses will be collected to.
-# You must configure your webserver to serve this directory as /static/ in production.
-STATIC_ROOT = '/home/luongd/Projects/LQDJudge/online-judge/static_root'
-
-# URL to access static files.
-#STATIC_URL = '/static/'
-
-# Uncomment to use hashed filenames with the cache framework.
-#STATICFILES_STORAGE = 'django.contrib.staticfiles.storage.CachedStaticFilesStorage'
-
-############################################
-########## DMOJ-specific settings ##########
-############################################
-
-## DMOJ site display settings.
-SITE_NAME = 'LQDOJ'
-SITE_LONG_NAME = 'LQDOJ: Le Quy Don Online Judge'
-SITE_ADMIN_EMAIL = 'admin@example.com'
-TERMS_OF_SERVICE_URL = '//dmoj.ca/tos' # Use a flatpage.
-
-## Bridge controls.
-# The judge connection address and port; where the judges will connect to the site.
-# You should change this to something your judges can actually connect to 
-# (e.g., a port that is unused and unblocked by a firewall).
-BRIDGED_JUDGE_ADDRESS = [('0.0.0.0', 9999)]
-
-# The bridged daemon bind address and port to communicate with the site.
-BRIDGED_DJANGO_ADDRESS = [('localhost', 9998)]
-
-## DMOJ features.
-# Set to True to enable full-text searching for problems.
-ENABLE_FTS = True
-
-# Set of email providers to ban when a user registers, e.g., {'throwawaymail.com'}.
-BAD_MAIL_PROVIDERS = set()
-
-# The number of submissions that a staff user can rejudge at once without
-# requiring the permission 'Rejudge a lot of submissions'.
-# Uncomment to change the submission limit.
-REJUDGE_SUBMISSION_LIMIT = 10
-
-## Event server.
-# Uncomment to enable live updating.
-# EVENT_DAEMON_USE = True
-
-# Uncomment this section to use websocket/daemon.js included in the site.
-#EVENT_DAEMON_POST = '<ws:// URL to post to>'
-
-# If you are using the defaults from the guide, it is this:
-EVENT_DAEMON_POST = 'ws://127.0.0.1:15101/'
-
-# These are the publicly accessed interface configurations.
-# They should match those used by the script.
-#EVENT_DAEMON_GET = '<public ws:// URL for clients>'
-#EVENT_DAEMON_GET_SSL = '<public wss:// URL for clients>'
-#EVENT_DAEMON_POLL = '<public URL to access the HTTP long polling of event server>'
-# i.e. the path to /channels/ exposed by the daemon, through whatever proxy setup you have.
-
-# Using our standard nginx configuration, these should be.
-#EVENT_DAEMON_GET = 'ws://<your domain>/event/'
-#EVENT_DAEMON_GET_SSL = 'wss://<your domain>/event/' # Optional
-#EVENT_DAEMON_POLL = '/channels/'
-
-# If you would like to use the AMQP-based event server from <https://github.com/DMOJ/event-server>,
-# uncomment this section instead. This is more involved, and recommended to be done
-# only after you have a working event server.
-#EVENT_DAEMON_AMQP = '<amqp:// URL to connect to, including username and password>'
-#EVENT_DAEMON_AMQP_EXCHANGE = '<AMQP exchange to use>'
-
-## CDN control.
-# Base URL for a copy of ace editor.
-# Should contain ace.js, along with mode-*.js.
-ACE_URL = '//cdnjs.cloudflare.com/ajax/libs/ace/1.2.3/'
-JQUERY_JS = '//cdnjs.cloudflare.com/ajax/libs/jquery/2.2.4/jquery.min.js'
-SELECT2_JS_URL = '//cdnjs.cloudflare.com/ajax/libs/select2/4.0.3/js/select2.min.js'
-SELECT2_CSS_URL = '//cdnjs.cloudflare.com/ajax/libs/select2/4.0.3/css/select2.min.css'
-
-# A map of Earth in Equirectangular projection, for timezone selection.
-# Please try not to hotlink this poor site.
-TIMEZONE_MAP = 'http://naturalearth.springercarto.com/ne3_data/8192/textures/3_no_ice_clouds_8k.jpg'
-
-## Camo (https://github.com/atmos/camo) usage.
-#CAMO_URL = "<URL to your camo install>"
-#CAMO_KEY = "<The CAMO_KEY environmental variable you used>"
-
-# Domains to exclude from being camo'd.
-#CAMO_EXCLUDE = ("https://dmoj.ml", "https://dmoj.ca")
-
-# Set to True to use https when dealing with protocol-relative URLs.
-# See <http://www.paulirish.com/2010/the-protocol-relative-url/> for what they are.
-#CAMO_HTTPS = False
-
-# HTTPS level. Affects <link rel='canonical'> elements generated.
-# Set to 0 to make http URLs canonical.
-# Set to 1 to make the currently used protocol canonical.
-# Set to 2 to make https URLs canonical.
-#DMOJ_HTTPS = 0
-
-## PDF rendering settings.
-# Directory to cache the PDF.
-# PROBLEM_PDF_CACHE = '/home/dmoj-uwsgi/pdfcache'
-
-# Path to use for nginx's X-Accel-Redirect feature.
-# Should be an internal location mapped to the above directory.
-# PROBLEM_PDF_INTERNAL = '/pdfcache'
-
-# Path to a PhantomJS executable.
-#PHANTOMJS = '/usr/local/bin/phantomjs'
-
-# If you can't use PhantomJS or prefer wkhtmltopdf, set the path to wkhtmltopdf executable instead.
-#WKHTMLTOPDF = '/usr/local/bin/wkhtmltopdf'
-
-# Note that PhantomJS is preferred over wkhtmltopdf and would be used when both are defined.
-
-## ======== Logging Settings ========
-# Documentation: https://docs.djangoproject.com/en/1.9/ref/settings/#logging
-#                https://docs.python.org/2/library/logging.config.html#logging-config-dictschema
-LOGGING = {
-    'version': 1,
-    'disable_existing_loggers': False,
-    'formatters': {
-        'file': {
-            'format': '%(levelname)s %(asctime)s %(module)s %(message)s',
-        },
-        'simple': {
-            'format': '%(levelname)s %(message)s',
-        },
-    },
-    'handlers': {
-        # You may use this handler as example for logging to other files..
-        'bridge': {
-            'level': 'INFO',
-            'class': 'logging.handlers.RotatingFileHandler',
-            'filename': '<desired bridge log path>',
-            'maxBytes': 10 * 1024 * 1024,
-            'backupCount': 10,
-            'formatter': 'file',
-        },
-        'mail_admins': {
-            'level': 'ERROR',
-            'class': 'dmoj.throttle_mail.ThrottledEmailHandler',
-        },
-        'console': {
-            'level': 'DEBUG',
-            'class': 'logging.StreamHandler',
-            'formatter': 'file',
-        },
-    },
-    'loggers': {
-        # Site 500 error mails.
-        'django.request': {
-            'handlers': ['mail_admins'],
-            'level': 'ERROR',
-            'propagate': False,
-        },
-        # Judging logs as received by bridged.
-        'judge.bridge': {
-            'handlers': ['bridge', 'mail_admins'],
-            'level': 'INFO',
-            'propagate': True,
-        },
-        # Catch all log to stderr.
-        '': {
-            'handlers': ['console'],
-        },
-        # Other loggers of interest. Configure at will.
-        #  - judge.user: logs naughty user behaviours.
-        #  - judge.problem.pdf: PDF generation log.
-        #  - judge.html: HTML parsing errors when processing problem statements etc.
-        #  - judge.mail.activate: logs for the reply to activate feature.
-        #  - event_socket_server
-    },
-}
-
-## ======== Integration Settings ========
-## Python Social Auth
-# Documentation: https://python-social-auth.readthedocs.io/en/latest/
-# You can define these to enable authentication through the following services.
-#SOCIAL_AUTH_GOOGLE_OAUTH2_KEY = ''
-#SOCIAL_AUTH_GOOGLE_OAUTH2_SECRET = ''
-#SOCIAL_AUTH_FACEBOOK_KEY = ''
-#SOCIAL_AUTH_FACEBOOK_SECRET = ''
-#SOCIAL_AUTH_GITHUB_SECURE_KEY = ''
-#SOCIAL_AUTH_GITHUB_SECURE_SECRET = ''
-#SOCIAL_AUTH_DROPBOX_OAUTH2_KEY = ''
-#SOCIAL_AUTH_DROPBOX_OAUTH2_SECRET = ''
-
-## ======== Custom Configuration ========
-# You may add whatever django configuration you would like here.
-# Do try to keep it separate so you can quickly patch in new settings.
diff --git a/dmoj/routing.py b/dmoj/routing.py
index 42238b7..72e0379 100644
--- a/dmoj/routing.py
+++ b/dmoj/routing.py
@@ -1,13 +1,12 @@
-import chat_box.routing
 from channels.auth import AuthMiddlewareStack
 from channels.routing import ProtocolTypeRouter, URLRouter
-
+import chat_box.routing
 
 application = ProtocolTypeRouter({
     # (http->django views is added by default)
     'websocket': AuthMiddlewareStack(
         URLRouter(
-            chat_box.routing.websocket_urlpatterns,
-        ),
+            chat_box.routing.websocket_urlpatterns
+        )
     ),
-})
+})
\ No newline at end of file
diff --git a/dmoj/settings.py b/dmoj/settings.py
index dd0b32e..1040998 100644
--- a/dmoj/settings.py
+++ b/dmoj/settings.py
@@ -109,7 +109,7 @@ TIMEZONE_MAP = None
 TIMEZONE_DETECT_BACKEND = None
 
 TERMS_OF_SERVICE_URL = None
-DEFAULT_USER_LANGUAGE = 'PY3'
+DEFAULT_USER_LANGUAGE = 'CPP11'
 
 PHANTOMJS = ''
 PHANTOMJS_PDF_ZOOM = 0.75
@@ -431,9 +431,9 @@ EVENT_DAEMON_SUBMISSION_KEY = '6Sdmkx^%pk@GsifDfXcwX*Y7LRF%RGT8vmFpSxFBT$fwS7trc
 # https://docs.djangoproject.com/en/1.11/topics/i18n/
 
 # Whatever you do, this better be one of the entries in `LANGUAGES`.
-LANGUAGE_CODE = 'en'
-TIME_ZONE = 'UTC'
-DEFAULT_USER_TIME_ZONE = 'America/Toronto'
+LANGUAGE_CODE = 'vi'
+TIME_ZONE = 'Asia/Ho_Chi_Minh'
+DEFAULT_USER_TIME_ZONE = 'Asia/Ho_Chi_Minh'
 USE_I18N = True
 USE_L10N = True
 USE_TZ = True
@@ -503,6 +503,8 @@ TESTCASE_VISIBLE_LENGTH = 60
 DATA_UPLOAD_MAX_NUMBER_FIELDS = 10240
 DATA_UPLOAD_MAX_MEMORY_SIZE = 2621440
 
+MESSAGES_TO_LOAD = 15
+
 ASGI_APPLICATION = 'dmoj.routing.application'
 CHANNEL_LAYERS = {
     'default': {
@@ -511,4 +513,4 @@ CHANNEL_LAYERS = {
             "hosts": [('0.0.0.0', 6379)],
         },
     },
-}
+}
\ No newline at end of file
diff --git a/dmoj/urls.py b/dmoj/urls.py
index 23cdb9c..5f29558 100644
--- a/dmoj/urls.py
+++ b/dmoj/urls.py
@@ -4,12 +4,14 @@ from django.conf.urls import include, url
 from django.contrib import admin
 from django.contrib.auth import views as auth_views
 from django.contrib.sitemaps.views import sitemap
-from django.http import Http404, HttpResponsePermanentRedirect
+from django.http import Http404, HttpResponsePermanentRedirect, HttpResponseRedirect
 from django.templatetags.static import static
 from django.urls import reverse
 from django.utils.functional import lazystr
 from django.utils.translation import ugettext_lazy as _
 from django.views.generic import RedirectView
+from django.contrib.auth.decorators import login_required
+
 
 from judge.feed import AtomBlogFeed, AtomCommentFeed, AtomProblemFeed, BlogFeed, CommentFeed, ProblemFeed
 from judge.forms import CustomAuthenticationForm
@@ -25,7 +27,6 @@ from judge.views.select2 import AssigneeSelect2View, CommentSelect2View, Contest
     ContestUserSearchSelect2View, OrganizationSelect2View, ProblemSelect2View, TicketUserSelect2View, \
     UserSearchSelect2View, UserSelect2View
 
-
 admin.autodiscover()
 
 register_patterns = [
@@ -367,7 +368,12 @@ urlpatterns = [
 
     url(r'^custom_checker_sample/', about.custom_checker_sample, name='custom_checker_sample'),
 
-    url(r'chat/', ChatView.as_view(), name='chat'),
+    url(r'^chat/', include([
+        url(r'^$', 
+            login_required(ChatView.as_view()),
+            name='chat'),
+
+    ])),
 ]
 
 favicon_paths = ['apple-touch-icon-180x180.png', 'apple-touch-icon-114x114.png', 'android-chrome-72x72.png',
@@ -382,7 +388,7 @@ favicon_paths = ['apple-touch-icon-180x180.png', 'apple-touch-icon-114x114.png',
 
 for favicon in favicon_paths:
     urlpatterns.append(url(r'^%s$' % favicon, RedirectView.as_view(
-        url=lazystr(lambda: static('icons/' + favicon)),
+        url=static('icons/' + favicon)
     )))
 
 handler404 = 'judge.views.error.error404'
diff --git a/judge/migrations/0101_custom_validator.py b/judge/migrations/0101_custom_validator.py
new file mode 100644
index 0000000..842006c
--- /dev/null
+++ b/judge/migrations/0101_custom_validator.py
@@ -0,0 +1,36 @@
+# Generated by Django 2.2.9 on 2020-03-17 05:01
+
+import django.core.validators
+from django.db import migrations, models
+import judge.models.problem_data
+import judge.utils.problem_data
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('judge', '0100_auto_20200127_0059'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='problemdata',
+            name='custom_valid',
+            field=models.FileField(blank=True, null=True, storage=judge.utils.problem_data.ProblemDataStorage(), upload_to=judge.models.problem_data.problem_directory_file, validators=[django.core.validators.FileExtensionValidator(allowed_extensions=['cpp'])], verbose_name='custom validator file'),
+        ),
+        migrations.AlterField(
+            model_name='problemdata',
+            name='checker',
+            field=models.CharField(blank=True, choices=[('standard', 'Standard'), ('floats', 'Floats'), ('floatsabs', 'Floats (absolute)'), ('floatsrel', 'Floats (relative)'), ('rstripped', 'Non-trailing spaces'), ('sorted', 'Unordered'), ('identical', 'Byte identical'), ('linecount', 'Line-by-line'), ('custom', 'Custom checker'), ('custom_valid', 'Custom Validator')], max_length=10, verbose_name='checker'),
+        ),
+        migrations.AlterField(
+            model_name='problemtestcase',
+            name='checker',
+            field=models.CharField(blank=True, choices=[('standard', 'Standard'), ('floats', 'Floats'), ('floatsabs', 'Floats (absolute)'), ('floatsrel', 'Floats (relative)'), ('rstripped', 'Non-trailing spaces'), ('sorted', 'Unordered'), ('identical', 'Byte identical'), ('linecount', 'Line-by-line'), ('custom', 'Custom checker'), ('custom_valid', 'Custom Validator')], max_length=10, verbose_name='checker'),
+        ),
+        migrations.AlterField(
+            model_name='profile',
+            name='timezone',
+            field=models.CharField(choices=[('Africa', [('Africa/Abidjan', 'Abidjan'), ('Africa/Accra', 'Accra'), ('Africa/Addis_Ababa', 'Addis_Ababa'), ('Africa/Algiers', 'Algiers'), ('Africa/Asmara', 'Asmara'), ('Africa/Asmera', 'Asmera'), ('Africa/Bamako', 'Bamako'), ('Africa/Bangui', 'Bangui'), ('Africa/Banjul', 'Banjul'), ('Africa/Bissau', 'Bissau'), ('Africa/Blantyre', 'Blantyre'), ('Africa/Brazzaville', 'Brazzaville'), ('Africa/Bujumbura', 'Bujumbura'), ('Africa/Cairo', 'Cairo'), ('Africa/Casablanca', 'Casablanca'), ('Africa/Ceuta', 'Ceuta'), ('Africa/Conakry', 'Conakry'), ('Africa/Dakar', 'Dakar'), ('Africa/Dar_es_Salaam', 'Dar_es_Salaam'), ('Africa/Djibouti', 'Djibouti'), ('Africa/Douala', 'Douala'), ('Africa/El_Aaiun', 'El_Aaiun'), ('Africa/Freetown', 'Freetown'), ('Africa/Gaborone', 'Gaborone'), ('Africa/Harare', 'Harare'), ('Africa/Johannesburg', 'Johannesburg'), ('Africa/Juba', 'Juba'), ('Africa/Kampala', 'Kampala'), ('Africa/Khartoum', 'Khartoum'), ('Africa/Kigali', 'Kigali'), ('Africa/Kinshasa', 'Kinshasa'), ('Africa/Lagos', 'Lagos'), ('Africa/Libreville', 'Libreville'), ('Africa/Lome', 'Lome'), ('Africa/Luanda', 'Luanda'), ('Africa/Lubumbashi', 'Lubumbashi'), ('Africa/Lusaka', 'Lusaka'), ('Africa/Malabo', 'Malabo'), ('Africa/Maputo', 'Maputo'), ('Africa/Maseru', 'Maseru'), ('Africa/Mbabane', 'Mbabane'), ('Africa/Mogadishu', 'Mogadishu'), ('Africa/Monrovia', 'Monrovia'), ('Africa/Nairobi', 'Nairobi'), ('Africa/Ndjamena', 'Ndjamena'), ('Africa/Niamey', 'Niamey'), ('Africa/Nouakchott', 'Nouakchott'), ('Africa/Ouagadougou', 'Ouagadougou'), ('Africa/Porto-Novo', 'Porto-Novo'), ('Africa/Sao_Tome', 'Sao_Tome'), ('Africa/Timbuktu', 'Timbuktu'), ('Africa/Tripoli', 'Tripoli'), ('Africa/Tunis', 'Tunis'), ('Africa/Windhoek', 'Windhoek')]), ('America', [('America/Adak', 'Adak'), ('America/Anchorage', 'Anchorage'), ('America/Anguilla', 'Anguilla'), ('America/Antigua', 'Antigua'), ('America/Araguaina', 'Araguaina'), ('America/Argentina/Buenos_Aires', 'Argentina/Buenos_Aires'), ('America/Argentina/Catamarca', 'Argentina/Catamarca'), ('America/Argentina/ComodRivadavia', 'Argentina/ComodRivadavia'), ('America/Argentina/Cordoba', 'Argentina/Cordoba'), ('America/Argentina/Jujuy', 'Argentina/Jujuy'), ('America/Argentina/La_Rioja', 'Argentina/La_Rioja'), ('America/Argentina/Mendoza', 'Argentina/Mendoza'), ('America/Argentina/Rio_Gallegos', 'Argentina/Rio_Gallegos'), ('America/Argentina/Salta', 'Argentina/Salta'), ('America/Argentina/San_Juan', 'Argentina/San_Juan'), ('America/Argentina/San_Luis', 'Argentina/San_Luis'), ('America/Argentina/Tucuman', 'Argentina/Tucuman'), ('America/Argentina/Ushuaia', 'Argentina/Ushuaia'), ('America/Aruba', 'Aruba'), ('America/Asuncion', 'Asuncion'), ('America/Atikokan', 'Atikokan'), ('America/Atka', 'Atka'), ('America/Bahia', 'Bahia'), ('America/Bahia_Banderas', 'Bahia_Banderas'), ('America/Barbados', 'Barbados'), ('America/Belem', 'Belem'), ('America/Belize', 'Belize'), ('America/Blanc-Sablon', 'Blanc-Sablon'), ('America/Boa_Vista', 'Boa_Vista'), ('America/Bogota', 'Bogota'), ('America/Boise', 'Boise'), ('America/Buenos_Aires', 'Buenos_Aires'), ('America/Cambridge_Bay', 'Cambridge_Bay'), ('America/Campo_Grande', 'Campo_Grande'), ('America/Cancun', 'Cancun'), ('America/Caracas', 'Caracas'), ('America/Catamarca', 'Catamarca'), ('America/Cayenne', 'Cayenne'), ('America/Cayman', 'Cayman'), ('America/Chicago', 'Chicago'), ('America/Chihuahua', 'Chihuahua'), ('America/Coral_Harbour', 'Coral_Harbour'), ('America/Cordoba', 'Cordoba'), ('America/Costa_Rica', 'Costa_Rica'), ('America/Creston', 'Creston'), ('America/Cuiaba', 'Cuiaba'), ('America/Curacao', 'Curacao'), ('America/Danmarkshavn', 'Danmarkshavn'), ('America/Dawson', 'Dawson'), ('America/Dawson_Creek', 'Dawson_Creek'), ('America/Denver', 'Denver'), ('America/Detroit', 'Detroit'), ('America/Dominica', 'Dominica'), ('America/Edmonton', 'Edmonton'), ('America/Eirunepe', 'Eirunepe'), ('America/El_Salvador', 'El_Salvador'), ('America/Ensenada', 'Ensenada'), ('America/Fort_Nelson', 'Fort_Nelson'), ('America/Fort_Wayne', 'Fort_Wayne'), ('America/Fortaleza', 'Fortaleza'), ('America/Glace_Bay', 'Glace_Bay'), ('America/Godthab', 'Godthab'), ('America/Goose_Bay', 'Goose_Bay'), ('America/Grand_Turk', 'Grand_Turk'), ('America/Grenada', 'Grenada'), ('America/Guadeloupe', 'Guadeloupe'), ('America/Guatemala', 'Guatemala'), ('America/Guayaquil', 'Guayaquil'), ('America/Guyana', 'Guyana'), ('America/Halifax', 'Halifax'), ('America/Havana', 'Havana'), ('America/Hermosillo', 'Hermosillo'), ('America/Indiana/Indianapolis', 'Indiana/Indianapolis'), ('America/Indiana/Knox', 'Indiana/Knox'), ('America/Indiana/Marengo', 'Indiana/Marengo'), ('America/Indiana/Petersburg', 'Indiana/Petersburg'), ('America/Indiana/Tell_City', 'Indiana/Tell_City'), ('America/Indiana/Vevay', 'Indiana/Vevay'), ('America/Indiana/Vincennes', 'Indiana/Vincennes'), ('America/Indiana/Winamac', 'Indiana/Winamac'), ('America/Indianapolis', 'Indianapolis'), ('America/Inuvik', 'Inuvik'), ('America/Iqaluit', 'Iqaluit'), ('America/Jamaica', 'Jamaica'), ('America/Jujuy', 'Jujuy'), ('America/Juneau', 'Juneau'), ('America/Kentucky/Louisville', 'Kentucky/Louisville'), ('America/Kentucky/Monticello', 'Kentucky/Monticello'), ('America/Knox_IN', 'Knox_IN'), ('America/Kralendijk', 'Kralendijk'), ('America/La_Paz', 'La_Paz'), ('America/Lima', 'Lima'), ('America/Los_Angeles', 'Los_Angeles'), ('America/Louisville', 'Louisville'), ('America/Lower_Princes', 'Lower_Princes'), ('America/Maceio', 'Maceio'), ('America/Managua', 'Managua'), ('America/Manaus', 'Manaus'), ('America/Marigot', 'Marigot'), ('America/Martinique', 'Martinique'), ('America/Matamoros', 'Matamoros'), ('America/Mazatlan', 'Mazatlan'), ('America/Mendoza', 'Mendoza'), ('America/Menominee', 'Menominee'), ('America/Merida', 'Merida'), ('America/Metlakatla', 'Metlakatla'), ('America/Mexico_City', 'Mexico_City'), ('America/Miquelon', 'Miquelon'), ('America/Moncton', 'Moncton'), ('America/Monterrey', 'Monterrey'), ('America/Montevideo', 'Montevideo'), ('America/Montreal', 'Montreal'), ('America/Montserrat', 'Montserrat'), ('America/Nassau', 'Nassau'), ('America/New_York', 'New_York'), ('America/Nipigon', 'Nipigon'), ('America/Nome', 'Nome'), ('America/Noronha', 'Noronha'), ('America/North_Dakota/Beulah', 'North_Dakota/Beulah'), ('America/North_Dakota/Center', 'North_Dakota/Center'), ('America/North_Dakota/New_Salem', 'North_Dakota/New_Salem'), ('America/Ojinaga', 'Ojinaga'), ('America/Panama', 'Panama'), ('America/Pangnirtung', 'Pangnirtung'), ('America/Paramaribo', 'Paramaribo'), ('America/Phoenix', 'Phoenix'), ('America/Port-au-Prince', 'Port-au-Prince'), ('America/Port_of_Spain', 'Port_of_Spain'), ('America/Porto_Acre', 'Porto_Acre'), ('America/Porto_Velho', 'Porto_Velho'), ('America/Puerto_Rico', 'Puerto_Rico'), ('America/Punta_Arenas', 'Punta_Arenas'), ('America/Rainy_River', 'Rainy_River'), ('America/Rankin_Inlet', 'Rankin_Inlet'), ('America/Recife', 'Recife'), ('America/Regina', 'Regina'), ('America/Resolute', 'Resolute'), ('America/Rio_Branco', 'Rio_Branco'), ('America/Rosario', 'Rosario'), ('America/Santa_Isabel', 'Santa_Isabel'), ('America/Santarem', 'Santarem'), ('America/Santiago', 'Santiago'), ('America/Santo_Domingo', 'Santo_Domingo'), ('America/Sao_Paulo', 'Sao_Paulo'), ('America/Scoresbysund', 'Scoresbysund'), ('America/Shiprock', 'Shiprock'), ('America/Sitka', 'Sitka'), ('America/St_Barthelemy', 'St_Barthelemy'), ('America/St_Johns', 'St_Johns'), ('America/St_Kitts', 'St_Kitts'), ('America/St_Lucia', 'St_Lucia'), ('America/St_Thomas', 'St_Thomas'), ('America/St_Vincent', 'St_Vincent'), ('America/Swift_Current', 'Swift_Current'), ('America/Tegucigalpa', 'Tegucigalpa'), ('America/Thule', 'Thule'), ('America/Thunder_Bay', 'Thunder_Bay'), ('America/Tijuana', 'Tijuana'), ('America/Toronto', 'Toronto'), ('America/Tortola', 'Tortola'), ('America/Vancouver', 'Vancouver'), ('America/Virgin', 'Virgin'), ('America/Whitehorse', 'Whitehorse'), ('America/Winnipeg', 'Winnipeg'), ('America/Yakutat', 'Yakutat'), ('America/Yellowknife', 'Yellowknife')]), ('Antarctica', [('Antarctica/Casey', 'Casey'), ('Antarctica/Davis', 'Davis'), ('Antarctica/DumontDUrville', 'DumontDUrville'), ('Antarctica/Macquarie', 'Macquarie'), ('Antarctica/Mawson', 'Mawson'), ('Antarctica/McMurdo', 'McMurdo'), ('Antarctica/Palmer', 'Palmer'), ('Antarctica/Rothera', 'Rothera'), ('Antarctica/South_Pole', 'South_Pole'), ('Antarctica/Syowa', 'Syowa'), ('Antarctica/Troll', 'Troll'), ('Antarctica/Vostok', 'Vostok')]), ('Arctic', [('Arctic/Longyearbyen', 'Longyearbyen')]), ('Asia', [('Asia/Aden', 'Aden'), ('Asia/Almaty', 'Almaty'), ('Asia/Amman', 'Amman'), ('Asia/Anadyr', 'Anadyr'), ('Asia/Aqtau', 'Aqtau'), ('Asia/Aqtobe', 'Aqtobe'), ('Asia/Ashgabat', 'Ashgabat'), ('Asia/Ashkhabad', 'Ashkhabad'), ('Asia/Atyrau', 'Atyrau'), ('Asia/Baghdad', 'Baghdad'), ('Asia/Bahrain', 'Bahrain'), ('Asia/Baku', 'Baku'), ('Asia/Bangkok', 'Bangkok'), ('Asia/Barnaul', 'Barnaul'), ('Asia/Beirut', 'Beirut'), ('Asia/Bishkek', 'Bishkek'), ('Asia/Brunei', 'Brunei'), ('Asia/Calcutta', 'Calcutta'), ('Asia/Chita', 'Chita'), ('Asia/Choibalsan', 'Choibalsan'), ('Asia/Chongqing', 'Chongqing'), ('Asia/Chungking', 'Chungking'), ('Asia/Colombo', 'Colombo'), ('Asia/Dacca', 'Dacca'), ('Asia/Damascus', 'Damascus'), ('Asia/Dhaka', 'Dhaka'), ('Asia/Dili', 'Dili'), ('Asia/Dubai', 'Dubai'), ('Asia/Dushanbe', 'Dushanbe'), ('Asia/Famagusta', 'Famagusta'), ('Asia/Gaza', 'Gaza'), ('Asia/Harbin', 'Harbin'), ('Asia/Hebron', 'Hebron'), ('Asia/Ho_Chi_Minh', 'Ho_Chi_Minh'), ('Asia/Hong_Kong', 'Hong_Kong'), ('Asia/Hovd', 'Hovd'), ('Asia/Irkutsk', 'Irkutsk'), ('Asia/Istanbul', 'Istanbul'), ('Asia/Jakarta', 'Jakarta'), ('Asia/Jayapura', 'Jayapura'), ('Asia/Jerusalem', 'Jerusalem'), ('Asia/Kabul', 'Kabul'), ('Asia/Kamchatka', 'Kamchatka'), ('Asia/Karachi', 'Karachi'), ('Asia/Kashgar', 'Kashgar'), ('Asia/Kathmandu', 'Kathmandu'), ('Asia/Katmandu', 'Katmandu'), ('Asia/Khandyga', 'Khandyga'), ('Asia/Kolkata', 'Kolkata'), ('Asia/Krasnoyarsk', 'Krasnoyarsk'), ('Asia/Kuala_Lumpur', 'Kuala_Lumpur'), ('Asia/Kuching', 'Kuching'), ('Asia/Kuwait', 'Kuwait'), ('Asia/Macao', 'Macao'), ('Asia/Macau', 'Macau'), ('Asia/Magadan', 'Magadan'), ('Asia/Makassar', 'Makassar'), ('Asia/Manila', 'Manila'), ('Asia/Muscat', 'Muscat'), ('Asia/Nicosia', 'Nicosia'), ('Asia/Novokuznetsk', 'Novokuznetsk'), ('Asia/Novosibirsk', 'Novosibirsk'), ('Asia/Omsk', 'Omsk'), ('Asia/Oral', 'Oral'), ('Asia/Phnom_Penh', 'Phnom_Penh'), ('Asia/Pontianak', 'Pontianak'), ('Asia/Pyongyang', 'Pyongyang'), ('Asia/Qatar', 'Qatar'), ('Asia/Qostanay', 'Qostanay'), ('Asia/Qyzylorda', 'Qyzylorda'), ('Asia/Rangoon', 'Rangoon'), ('Asia/Riyadh', 'Riyadh'), ('Asia/Saigon', 'Saigon'), ('Asia/Sakhalin', 'Sakhalin'), ('Asia/Samarkand', 'Samarkand'), ('Asia/Seoul', 'Seoul'), ('Asia/Shanghai', 'Shanghai'), ('Asia/Singapore', 'Singapore'), ('Asia/Srednekolymsk', 'Srednekolymsk'), ('Asia/Taipei', 'Taipei'), ('Asia/Tashkent', 'Tashkent'), ('Asia/Tbilisi', 'Tbilisi'), ('Asia/Tehran', 'Tehran'), ('Asia/Tel_Aviv', 'Tel_Aviv'), ('Asia/Thimbu', 'Thimbu'), ('Asia/Thimphu', 'Thimphu'), ('Asia/Tokyo', 'Tokyo'), ('Asia/Tomsk', 'Tomsk'), ('Asia/Ujung_Pandang', 'Ujung_Pandang'), ('Asia/Ulaanbaatar', 'Ulaanbaatar'), ('Asia/Ulan_Bator', 'Ulan_Bator'), ('Asia/Urumqi', 'Urumqi'), ('Asia/Ust-Nera', 'Ust-Nera'), ('Asia/Vientiane', 'Vientiane'), ('Asia/Vladivostok', 'Vladivostok'), ('Asia/Yakutsk', 'Yakutsk'), ('Asia/Yangon', 'Yangon'), ('Asia/Yekaterinburg', 'Yekaterinburg'), ('Asia/Yerevan', 'Yerevan')]), ('Atlantic', [('Atlantic/Azores', 'Azores'), ('Atlantic/Bermuda', 'Bermuda'), ('Atlantic/Canary', 'Canary'), ('Atlantic/Cape_Verde', 'Cape_Verde'), ('Atlantic/Faeroe', 'Faeroe'), ('Atlantic/Faroe', 'Faroe'), ('Atlantic/Jan_Mayen', 'Jan_Mayen'), ('Atlantic/Madeira', 'Madeira'), ('Atlantic/Reykjavik', 'Reykjavik'), ('Atlantic/South_Georgia', 'South_Georgia'), ('Atlantic/St_Helena', 'St_Helena'), ('Atlantic/Stanley', 'Stanley')]), ('Australia', [('Australia/ACT', 'ACT'), ('Australia/Adelaide', 'Adelaide'), ('Australia/Brisbane', 'Brisbane'), ('Australia/Broken_Hill', 'Broken_Hill'), ('Australia/Canberra', 'Canberra'), ('Australia/Currie', 'Currie'), ('Australia/Darwin', 'Darwin'), ('Australia/Eucla', 'Eucla'), ('Australia/Hobart', 'Hobart'), ('Australia/LHI', 'LHI'), ('Australia/Lindeman', 'Lindeman'), ('Australia/Lord_Howe', 'Lord_Howe'), ('Australia/Melbourne', 'Melbourne'), ('Australia/NSW', 'NSW'), ('Australia/North', 'North'), ('Australia/Perth', 'Perth'), ('Australia/Queensland', 'Queensland'), ('Australia/South', 'South'), ('Australia/Sydney', 'Sydney'), ('Australia/Tasmania', 'Tasmania'), ('Australia/Victoria', 'Victoria'), ('Australia/West', 'West'), ('Australia/Yancowinna', 'Yancowinna')]), ('Brazil', [('Brazil/Acre', 'Acre'), ('Brazil/DeNoronha', 'DeNoronha'), ('Brazil/East', 'East'), ('Brazil/West', 'West')]), ('Canada', [('Canada/Atlantic', 'Atlantic'), ('Canada/Central', 'Central'), ('Canada/Eastern', 'Eastern'), ('Canada/Mountain', 'Mountain'), ('Canada/Newfoundland', 'Newfoundland'), ('Canada/Pacific', 'Pacific'), ('Canada/Saskatchewan', 'Saskatchewan'), ('Canada/Yukon', 'Yukon')]), ('Chile', [('Chile/Continental', 'Continental'), ('Chile/EasterIsland', 'EasterIsland')]), ('Etc', [('Etc/Greenwich', 'Greenwich'), ('Etc/UCT', 'UCT'), ('Etc/UTC', 'UTC'), ('Etc/Universal', 'Universal'), ('Etc/Zulu', 'Zulu')]), ('Europe', [('Europe/Amsterdam', 'Amsterdam'), ('Europe/Andorra', 'Andorra'), ('Europe/Astrakhan', 'Astrakhan'), ('Europe/Athens', 'Athens'), ('Europe/Belfast', 'Belfast'), ('Europe/Belgrade', 'Belgrade'), ('Europe/Berlin', 'Berlin'), ('Europe/Bratislava', 'Bratislava'), ('Europe/Brussels', 'Brussels'), ('Europe/Bucharest', 'Bucharest'), ('Europe/Budapest', 'Budapest'), ('Europe/Busingen', 'Busingen'), ('Europe/Chisinau', 'Chisinau'), ('Europe/Copenhagen', 'Copenhagen'), ('Europe/Dublin', 'Dublin'), ('Europe/Gibraltar', 'Gibraltar'), ('Europe/Guernsey', 'Guernsey'), ('Europe/Helsinki', 'Helsinki'), ('Europe/Isle_of_Man', 'Isle_of_Man'), ('Europe/Istanbul', 'Istanbul'), ('Europe/Jersey', 'Jersey'), ('Europe/Kaliningrad', 'Kaliningrad'), ('Europe/Kiev', 'Kiev'), ('Europe/Kirov', 'Kirov'), ('Europe/Lisbon', 'Lisbon'), ('Europe/Ljubljana', 'Ljubljana'), ('Europe/London', 'London'), ('Europe/Luxembourg', 'Luxembourg'), ('Europe/Madrid', 'Madrid'), ('Europe/Malta', 'Malta'), ('Europe/Mariehamn', 'Mariehamn'), ('Europe/Minsk', 'Minsk'), ('Europe/Monaco', 'Monaco'), ('Europe/Moscow', 'Moscow'), ('Europe/Nicosia', 'Nicosia'), ('Europe/Oslo', 'Oslo'), ('Europe/Paris', 'Paris'), ('Europe/Podgorica', 'Podgorica'), ('Europe/Prague', 'Prague'), ('Europe/Riga', 'Riga'), ('Europe/Rome', 'Rome'), ('Europe/Samara', 'Samara'), ('Europe/San_Marino', 'San_Marino'), ('Europe/Sarajevo', 'Sarajevo'), ('Europe/Saratov', 'Saratov'), ('Europe/Simferopol', 'Simferopol'), ('Europe/Skopje', 'Skopje'), ('Europe/Sofia', 'Sofia'), ('Europe/Stockholm', 'Stockholm'), ('Europe/Tallinn', 'Tallinn'), ('Europe/Tirane', 'Tirane'), ('Europe/Tiraspol', 'Tiraspol'), ('Europe/Ulyanovsk', 'Ulyanovsk'), ('Europe/Uzhgorod', 'Uzhgorod'), ('Europe/Vaduz', 'Vaduz'), ('Europe/Vatican', 'Vatican'), ('Europe/Vienna', 'Vienna'), ('Europe/Vilnius', 'Vilnius'), ('Europe/Volgograd', 'Volgograd'), ('Europe/Warsaw', 'Warsaw'), ('Europe/Zagreb', 'Zagreb'), ('Europe/Zaporozhye', 'Zaporozhye'), ('Europe/Zurich', 'Zurich')]), ('Indian', [('Indian/Antananarivo', 'Antananarivo'), ('Indian/Chagos', 'Chagos'), ('Indian/Christmas', 'Christmas'), ('Indian/Cocos', 'Cocos'), ('Indian/Comoro', 'Comoro'), ('Indian/Kerguelen', 'Kerguelen'), ('Indian/Mahe', 'Mahe'), ('Indian/Maldives', 'Maldives'), ('Indian/Mauritius', 'Mauritius'), ('Indian/Mayotte', 'Mayotte'), ('Indian/Reunion', 'Reunion')]), ('Mexico', [('Mexico/BajaNorte', 'BajaNorte'), ('Mexico/BajaSur', 'BajaSur'), ('Mexico/General', 'General')]), ('Other', [('CET', 'CET'), ('CST6CDT', 'CST6CDT'), ('Cuba', 'Cuba'), ('EET', 'EET'), ('EST', 'EST'), ('EST5EDT', 'EST5EDT'), ('Egypt', 'Egypt'), ('Eire', 'Eire'), ('GB', 'GB'), ('GB-Eire', 'GB-Eire'), ('Greenwich', 'Greenwich'), ('HST', 'HST'), ('Hongkong', 'Hongkong'), ('Iceland', 'Iceland'), ('Iran', 'Iran'), ('Israel', 'Israel'), ('Jamaica', 'Jamaica'), ('Japan', 'Japan'), ('Kwajalein', 'Kwajalein'), ('Libya', 'Libya'), ('MET', 'MET'), ('MST', 'MST'), ('MST7MDT', 'MST7MDT'), ('NZ', 'NZ'), ('NZ-CHAT', 'NZ-CHAT'), ('Navajo', 'Navajo'), ('PRC', 'PRC'), ('PST8PDT', 'PST8PDT'), ('Poland', 'Poland'), ('Portugal', 'Portugal'), ('ROC', 'ROC'), ('ROK', 'ROK'), ('Singapore', 'Singapore'), ('Turkey', 'Turkey'), ('UCT', 'UCT'), ('UTC', 'UTC'), ('Universal', 'Universal'), ('W-SU', 'W-SU'), ('WET', 'WET'), ('Zulu', 'Zulu')]), ('Pacific', [('Pacific/Apia', 'Apia'), ('Pacific/Auckland', 'Auckland'), ('Pacific/Bougainville', 'Bougainville'), ('Pacific/Chatham', 'Chatham'), ('Pacific/Chuuk', 'Chuuk'), ('Pacific/Easter', 'Easter'), ('Pacific/Efate', 'Efate'), ('Pacific/Enderbury', 'Enderbury'), ('Pacific/Fakaofo', 'Fakaofo'), ('Pacific/Fiji', 'Fiji'), ('Pacific/Funafuti', 'Funafuti'), ('Pacific/Galapagos', 'Galapagos'), ('Pacific/Gambier', 'Gambier'), ('Pacific/Guadalcanal', 'Guadalcanal'), ('Pacific/Guam', 'Guam'), ('Pacific/Honolulu', 'Honolulu'), ('Pacific/Johnston', 'Johnston'), ('Pacific/Kiritimati', 'Kiritimati'), ('Pacific/Kosrae', 'Kosrae'), ('Pacific/Kwajalein', 'Kwajalein'), ('Pacific/Majuro', 'Majuro'), ('Pacific/Marquesas', 'Marquesas'), ('Pacific/Midway', 'Midway'), ('Pacific/Nauru', 'Nauru'), ('Pacific/Niue', 'Niue'), ('Pacific/Norfolk', 'Norfolk'), ('Pacific/Noumea', 'Noumea'), ('Pacific/Pago_Pago', 'Pago_Pago'), ('Pacific/Palau', 'Palau'), ('Pacific/Pitcairn', 'Pitcairn'), ('Pacific/Pohnpei', 'Pohnpei'), ('Pacific/Ponape', 'Ponape'), ('Pacific/Port_Moresby', 'Port_Moresby'), ('Pacific/Rarotonga', 'Rarotonga'), ('Pacific/Saipan', 'Saipan'), ('Pacific/Samoa', 'Samoa'), ('Pacific/Tahiti', 'Tahiti'), ('Pacific/Tarawa', 'Tarawa'), ('Pacific/Tongatapu', 'Tongatapu'), ('Pacific/Truk', 'Truk'), ('Pacific/Wake', 'Wake'), ('Pacific/Wallis', 'Wallis'), ('Pacific/Yap', 'Yap')]), ('US', [('US/Alaska', 'Alaska'), ('US/Aleutian', 'Aleutian'), ('US/Arizona', 'Arizona'), ('US/Central', 'Central'), ('US/East-Indiana', 'East-Indiana'), ('US/Eastern', 'Eastern'), ('US/Hawaii', 'Hawaii'), ('US/Indiana-Starke', 'Indiana-Starke'), ('US/Michigan', 'Michigan'), ('US/Mountain', 'Mountain'), ('US/Pacific', 'Pacific'), ('US/Samoa', 'Samoa')])], default='Asia/Ho_Chi_Minh', max_length=50, verbose_name='location'),
+        ),
+    ]
diff --git a/judge/migrations/0102_fix_custom_validator.py b/judge/migrations/0102_fix_custom_validator.py
new file mode 100644
index 0000000..a0dccce
--- /dev/null
+++ b/judge/migrations/0102_fix_custom_validator.py
@@ -0,0 +1,23 @@
+# Generated by Django 2.2.9 on 2020-03-17 05:05
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('judge', '0101_custom_validator'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='problemdata',
+            name='checker',
+            field=models.CharField(blank=True, choices=[('standard', 'Standard'), ('floats', 'Floats'), ('floatsabs', 'Floats (absolute)'), ('floatsrel', 'Floats (relative)'), ('rstripped', 'Non-trailing spaces'), ('sorted', 'Unordered'), ('identical', 'Byte identical'), ('linecount', 'Line-by-line'), ('custom', 'Custom checker'), ('customval', 'Custom Validator')], max_length=10, verbose_name='checker'),
+        ),
+        migrations.AlterField(
+            model_name='problemtestcase',
+            name='checker',
+            field=models.CharField(blank=True, choices=[('standard', 'Standard'), ('floats', 'Floats'), ('floatsabs', 'Floats (absolute)'), ('floatsrel', 'Floats (relative)'), ('rstripped', 'Non-trailing spaces'), ('sorted', 'Unordered'), ('identical', 'Byte identical'), ('linecount', 'Line-by-line'), ('custom', 'Custom checker'), ('customval', 'Custom Validator')], max_length=10, verbose_name='checker'),
+        ),
+    ]
diff --git a/judge/migrations/0103_fix_custom_validator.py b/judge/migrations/0103_fix_custom_validator.py
new file mode 100644
index 0000000..2720bb8
--- /dev/null
+++ b/judge/migrations/0103_fix_custom_validator.py
@@ -0,0 +1,18 @@
+# Generated by Django 2.2.9 on 2020-03-17 05:17
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('judge', '0102_fix_custom_validator'),
+    ]
+
+    operations = [
+        migrations.RenameField(
+            model_name='problemdata',
+            old_name='custom_valid',
+            new_name='custom_validator',
+        ),
+    ]
diff --git a/judge/models/problem_data.py b/judge/models/problem_data.py
index 6f6c88c..da443e5 100644
--- a/judge/models/problem_data.py
+++ b/judge/models/problem_data.py
@@ -29,7 +29,8 @@ CHECKERS = (
     ('sorted', _('Unordered')),
     ('identical', _('Byte identical')),
     ('linecount', _('Line-by-line')),
-    ('custom', _('Custom checker')),
+    ('custom', _('Custom checker (PY)')),
+    ('customval', _('Custom validator (CPP)')),
 )
 
 
@@ -52,6 +53,12 @@ class ProblemData(models.Model):
                                       blank=True,
                                       upload_to=problem_directory_file,
                                       validators=[FileExtensionValidator(allowed_extensions=['py'])])
+    custom_validator = models.FileField(verbose_name=_('custom validator file'),
+                                        storage=problem_data_storage,
+                                        null=True,
+                                        blank=True,
+                                        upload_to=problem_directory_file,
+                                        validators=[FileExtensionValidator(allowed_extensions=['cpp'])])
     __original_zipfile = None
 
     def __init__(self, *args, **kwargs):
@@ -78,6 +85,10 @@ class ProblemData(models.Model):
             self.generator.name = _problem_directory_file(new, self.generator.name)
         if self.custom_checker:
             self.custom_checker.name = _problem_directory_file(new, self.custom_checker.name)
+        if self.custom_checker:
+            self.custom_checker.name = _problem_directory_file(new, self.custom_checker.name)
+        if self.custom_validator:
+            self.custom_validator.name = _problem_directory_file(new, self.custom_validator.name)
         self.save()
     _update_code.alters_data = True
 
diff --git a/judge/utils/problem_data.py b/judge/utils/problem_data.py
index 9c185fd..5bf6341 100644
--- a/judge/utils/problem_data.py
+++ b/judge/utils/problem_data.py
@@ -1,6 +1,7 @@
 import json
 import os
 import re
+import shutil
 
 import yaml
 from django.conf import settings
@@ -9,6 +10,10 @@ from django.core.files.storage import FileSystemStorage
 from django.urls import reverse
 from django.utils.translation import gettext as _
 
+
+VALIDATOR_TEMPLATE_PATH = 'validator_template/template.py'
+
+
 if os.altsep:
     def split_path_first(path, repath=re.compile('[%s]' % re.escape(os.sep + os.altsep))):
         return repath.split(path, 1)
@@ -63,12 +68,38 @@ class ProblemDataCompiler(object):
                 raise ProblemDataError(_('Empty batches not allowed.'))
             cases.append(batch)
 
+        def make_checker_for_validator(case):
+            checker_name = "cppvalidator.py"
+            validator_path = split_path_first(case.custom_validator.name)
+
+            if len(validator_path) != 2:
+                raise ProblemDataError(_('How did you corrupt the custom checker path?'))
+
+            checker = os.path.join(settings.DMOJ_PROBLEM_DATA_ROOT, 
+                                   validator_path[0], 
+                                   checker_name)
+
+            validator_name = validator_path[1]
+            shutil.copy(VALIDATOR_TEMPLATE_PATH, checker)
+
+            # replace {{filecpp}} and {{problemid}} in checker file
+            filedata = open(checker, 'r').read()
+            filedata = filedata.replace('{{filecpp}}', "\'%s\'" % validator_name)
+            filedata = filedata.replace('{{problemid}}', "\'%s\'" % validator_path[0])
+            open(checker, 'w').write(filedata)
+
+            return checker_name
+
         def make_checker(case):
             if (case.checker == 'custom'):
                 custom_checker_path = split_path_first(case.custom_checker.name)
                 if len(custom_checker_path) != 2:
                     raise ProblemDataError(_('How did you corrupt the custom checker path?'))
                 return(custom_checker_path[1])
+
+            if (case.checker == 'customval'):
+                return make_checker_for_validator(case)
+
             if case.checker_args:
                 return {
                     'name': case.checker,
diff --git a/judge/views/problem.py b/judge/views/problem.py
index 07924bb..23e6e5a 100644
--- a/judge/views/problem.py
+++ b/judge/views/problem.py
@@ -287,11 +287,11 @@ class ProblemList(QueryStringSortMixin, TitleMixin, SolvedProblemMixin, ListView
     context_object_name = 'problems'
     template_name = 'problem/list.html'
     paginate_by = 50
-    sql_sort = frozenset(('points', 'ac_rate', 'user_count', 'code'))
+    sql_sort = frozenset(('date', 'points', 'ac_rate', 'user_count', 'code'))
     manual_sort = frozenset(('name', 'group', 'solved', 'type'))
     all_sorts = sql_sort | manual_sort
-    default_desc = frozenset(('points', 'ac_rate', 'user_count'))
-    default_sort = 'code'
+    default_desc = frozenset(('date', 'points', 'ac_rate', 'user_count'))
+    default_sort = '-date'
 
     def get_paginator(self, queryset, per_page, orphans=0,
                       allow_empty_first_page=True, **kwargs):
diff --git a/judge/views/problem_data.py b/judge/views/problem_data.py
index 2c392aa..00bd38c 100644
--- a/judge/views/problem_data.py
+++ b/judge/views/problem_data.py
@@ -8,7 +8,7 @@ from django.conf import settings
 from django.contrib.auth.decorators import login_required
 from django.contrib.auth.mixins import LoginRequiredMixin
 from django.core.exceptions import ValidationError
-from django.forms import BaseModelFormSet, HiddenInput, ModelForm, NumberInput, Select, formset_factory
+from django.forms import BaseModelFormSet, HiddenInput, ModelForm, NumberInput, Select, formset_factory, FileInput
 from django.http import Http404, HttpResponse, HttpResponseRedirect
 from django.shortcuts import get_object_or_404, render
 from django.urls import reverse
@@ -50,9 +50,12 @@ class ProblemDataForm(ModelForm):
 
     class Meta:
         model = ProblemData
-        fields = ['zipfile', 'generator', 'output_limit', 'output_prefix', 'checker', 'checker_args', 'custom_checker']
+        fields = ['zipfile', 'checker', 'checker_args', 'custom_checker', 'custom_validator']
         widgets = {
             'checker_args': HiddenInput,
+            'generator': HiddenInput,
+            'output_limit': HiddenInput,
+            'output_prefix': HiddenInput,
         }
 
 
@@ -62,14 +65,14 @@ class ProblemCaseForm(ModelForm):
     class Meta:
         model = ProblemTestCase
         fields = ('order', 'type', 'input_file', 'output_file', 'points',
-                  'is_pretest', 'output_limit', 'output_prefix', 'checker', 'checker_args', 'generator_args')
+                  'is_pretest', 'checker', 'checker_args') #, 'output_limit', 'output_prefix', 'generator_args')
         widgets = {
-            'generator_args': HiddenInput,
+            # 'generator_args': HiddenInput,
             'type': Select(attrs={'style': 'width: 100%'}),
             'points': NumberInput(attrs={'style': 'width: 4em'}),
-            'output_prefix': NumberInput(attrs={'style': 'width: 4.5em'}),
-            'output_limit': NumberInput(attrs={'style': 'width: 6em'}),
-            'checker_args': HiddenInput,
+            # 'output_prefix': NumberInput(attrs={'style': 'width: 4.5em'}),
+            # 'output_limit': NumberInput(attrs={'style': 'width: 6em'}),
+            # 'checker_args': HiddenInput,
         }
 
 
diff --git a/make_style.sh b/make_style.sh
index bc70d19..1a837b0 100755
--- a/make_style.sh
+++ b/make_style.sh
@@ -17,7 +17,7 @@ fi
 FILES=(sass_processed/style.css sass_processed/content-description.css sass_processed/table.css sass_processed/ranks.css)
 
 cd `dirname $0`
-sass --update resources:sass_processed
+sass resources:sass_processed
 
 echo
 postcss "${FILES[@]}" --verbose --use autoprefixer -d resources
diff --git a/resources/base.scss b/resources/base.scss
index f04b204..6c624ad 100644
--- a/resources/base.scss
+++ b/resources/base.scss
@@ -115,6 +115,7 @@ body {
     font-family: "Segoe UI", "Lucida Grande", Arial, sans-serif;
     color: #000;
     height: 100%;
+    overflow-x: hidden;
 }
 
 .unselectable {
@@ -180,7 +181,7 @@ header {
     }
 
     a {
-        color: #FFF;
+        color: #9c3706;
     }
 
     li {
@@ -206,7 +207,7 @@ header {
             }
 
             & > span {
-                color: #eee;
+                color: darkslateblue;
                 vertical-align: middle;
                 display: inline;
                 margin-top: 11px;
@@ -218,20 +219,20 @@ header {
 }
 
 #nav-shadow {
-    height: 3px;
-    background: linear-gradient(rgba(0, 0, 0, 0.5), transparent);
+    height: 2px;
+    background: linear-gradient(#7dc7ff, transparent);
 }
 
 #nav-container {
-    background: $widget_black;
+    background: #7dc7ff;
 
-    // opacity: 0.77
+    // opacity: 0.77;
     // filter: alpha(opacity=77)
     height: 100%;
 }
 
 #navigation {
-    position: fixed;
+    position: relative;
     top: 0;
     left: 0;
     right: 0;
@@ -276,12 +277,12 @@ nav {
                 display: inline-block;
                 text-decoration: none;
                 vertical-align: middle;
-                color: #FFF;
+                color: #9c3706;
                 padding: 13px 7px;
                 height: 18px;
 
                 &:link {
-                    color: #FFF;
+                    color: #9c3706;
                 }
 
                 &:hover {
@@ -291,8 +292,9 @@ nav {
                 }
 
                 &.active {
-                    color: #FFF;
+                    // color: #FFF;
                     background: $highlight_blue;
+                    color: black;
                 }
 
                 .nav-expand {
@@ -370,7 +372,7 @@ hr {
 }
 
 #content {
-    margin: 52px auto auto;
+    margin: 1em auto auto;
 
     // Header
     width: 90%;
diff --git a/resources/blog.scss b/resources/blog.scss
index c5f0423..1a67fc2 100644
--- a/resources/blog.scss
+++ b/resources/blog.scss
@@ -15,10 +15,10 @@
             font-size: 1.7em;
 
             a {
-                color: #5b80b9 !important;
+                color: Maroon !important;
 
                 &:hover {
-                    color: #0645ad !important;
+                    color: #c00000 !important;
                 }
             }
         }
diff --git a/resources/chatbox.scss b/resources/chatbox.scss
new file mode 100644
index 0000000..3839fce
--- /dev/null
+++ b/resources/chatbox.scss
@@ -0,0 +1,71 @@
+#chat-box {
+    border: 1px solid #ccc;
+    border-radius: 4px;
+    height: 20em;
+    width: 100%;
+    overflow: hidden;
+    overflow-wrap: break-word;
+    overflow-y: scroll;
+}
+
+#loader {
+    display: block;
+    margin-left: auto;
+    margin-right: auto;
+    width: 4%;
+}
+
+#chat-log {
+    padding: 0;
+    padding-top: 2em;
+    width: 100%;
+}
+
+#chat-log li {
+    list-style-type: none;
+    margin: 0.5em;
+}
+
+#chat-input {
+    width: 100%;
+    padding: 0.4em;
+    color: black;
+}
+
+#chat-submit {
+    margin-top: 1em;
+}
+
+.profile-pic {
+    height: 2.6em;
+    width: 2.6em;
+    border-radius: 0.3em;
+    margin-top: 0.1em;
+    float: left;
+}
+
+.body-message {
+    padding-left: 3em;
+}
+
+.user-time {
+    margin-bottom: 0.3em;
+}
+
+.time {
+    margin-left: 0.5em;
+}
+
+.user {
+    font-weight: bold;
+}
+
+.clear {
+    clear: both;
+}
+.content-message {
+    word-wrap: break-word;
+    white-space: pre-line;
+}
+
+
diff --git a/resources/icons/android-chrome-144x144.png b/resources/icons/android-chrome-144x144.png
index 4414980..6a5f355 100644
Binary files a/resources/icons/android-chrome-144x144.png and b/resources/icons/android-chrome-144x144.png differ
diff --git a/resources/icons/android-chrome-192x192.png b/resources/icons/android-chrome-192x192.png
index 643a3cc..86ba0f1 100644
Binary files a/resources/icons/android-chrome-192x192.png and b/resources/icons/android-chrome-192x192.png differ
diff --git a/resources/icons/android-chrome-36x36.png b/resources/icons/android-chrome-36x36.png
index f9ab9a9..1afb5d0 100644
Binary files a/resources/icons/android-chrome-36x36.png and b/resources/icons/android-chrome-36x36.png differ
diff --git a/resources/icons/android-chrome-48x48.png b/resources/icons/android-chrome-48x48.png
index 17b3d6d..373c603 100644
Binary files a/resources/icons/android-chrome-48x48.png and b/resources/icons/android-chrome-48x48.png differ
diff --git a/resources/icons/android-chrome-72x72.png b/resources/icons/android-chrome-72x72.png
index 473c807..47ea2ce 100644
Binary files a/resources/icons/android-chrome-72x72.png and b/resources/icons/android-chrome-72x72.png differ
diff --git a/resources/icons/android-chrome-96x96.png b/resources/icons/android-chrome-96x96.png
index 7a48552..5d553bf 100644
Binary files a/resources/icons/android-chrome-96x96.png and b/resources/icons/android-chrome-96x96.png differ
diff --git a/resources/icons/apple-touch-icon-114x114-precomposed.png b/resources/icons/apple-touch-icon-114x114-precomposed.png
new file mode 100644
index 0000000..5764db5
Binary files /dev/null and b/resources/icons/apple-touch-icon-114x114-precomposed.png differ
diff --git a/resources/icons/apple-touch-icon-114x114.png b/resources/icons/apple-touch-icon-114x114.png
index c58ca6b..4bb4160 100644
Binary files a/resources/icons/apple-touch-icon-114x114.png and b/resources/icons/apple-touch-icon-114x114.png differ
diff --git a/resources/icons/apple-touch-icon-120x120-precomposed.png b/resources/icons/apple-touch-icon-120x120-precomposed.png
new file mode 100644
index 0000000..2ee5716
Binary files /dev/null and b/resources/icons/apple-touch-icon-120x120-precomposed.png differ
diff --git a/resources/icons/apple-touch-icon-120x120.png b/resources/icons/apple-touch-icon-120x120.png
index 7176de4..63a1fdd 100644
Binary files a/resources/icons/apple-touch-icon-120x120.png and b/resources/icons/apple-touch-icon-120x120.png differ
diff --git a/resources/icons/apple-touch-icon-144x144-precomposed.png b/resources/icons/apple-touch-icon-144x144-precomposed.png
new file mode 100644
index 0000000..2fd4d8e
Binary files /dev/null and b/resources/icons/apple-touch-icon-144x144-precomposed.png differ
diff --git a/resources/icons/apple-touch-icon-144x144.png b/resources/icons/apple-touch-icon-144x144.png
index aff4d3b..cc16c9f 100644
Binary files a/resources/icons/apple-touch-icon-144x144.png and b/resources/icons/apple-touch-icon-144x144.png differ
diff --git a/resources/icons/apple-touch-icon-152x152-precomposed.png b/resources/icons/apple-touch-icon-152x152-precomposed.png
new file mode 100644
index 0000000..1f6ea27
Binary files /dev/null and b/resources/icons/apple-touch-icon-152x152-precomposed.png differ
diff --git a/resources/icons/apple-touch-icon-152x152.png b/resources/icons/apple-touch-icon-152x152.png
index 983db1e..300b82f 100644
Binary files a/resources/icons/apple-touch-icon-152x152.png and b/resources/icons/apple-touch-icon-152x152.png differ
diff --git a/resources/icons/apple-touch-icon-180x180-precomposed.png b/resources/icons/apple-touch-icon-180x180-precomposed.png
new file mode 100644
index 0000000..8553085
Binary files /dev/null and b/resources/icons/apple-touch-icon-180x180-precomposed.png differ
diff --git a/resources/icons/apple-touch-icon-180x180.png b/resources/icons/apple-touch-icon-180x180.png
index ae819ae..d737f87 100644
Binary files a/resources/icons/apple-touch-icon-180x180.png and b/resources/icons/apple-touch-icon-180x180.png differ
diff --git a/resources/icons/apple-touch-icon-57x57-precomposed.png b/resources/icons/apple-touch-icon-57x57-precomposed.png
new file mode 100644
index 0000000..deb2048
Binary files /dev/null and b/resources/icons/apple-touch-icon-57x57-precomposed.png differ
diff --git a/resources/icons/apple-touch-icon-57x57.png b/resources/icons/apple-touch-icon-57x57.png
index b6efba1..2b2533d 100644
Binary files a/resources/icons/apple-touch-icon-57x57.png and b/resources/icons/apple-touch-icon-57x57.png differ
diff --git a/resources/icons/apple-touch-icon-60x60-precomposed.png b/resources/icons/apple-touch-icon-60x60-precomposed.png
new file mode 100644
index 0000000..6b16cb1
Binary files /dev/null and b/resources/icons/apple-touch-icon-60x60-precomposed.png differ
diff --git a/resources/icons/apple-touch-icon-60x60.png b/resources/icons/apple-touch-icon-60x60.png
index 82d7a24..7c86aba 100644
Binary files a/resources/icons/apple-touch-icon-60x60.png and b/resources/icons/apple-touch-icon-60x60.png differ
diff --git a/resources/icons/apple-touch-icon-72x72-precomposed.png b/resources/icons/apple-touch-icon-72x72-precomposed.png
new file mode 100644
index 0000000..85fa920
Binary files /dev/null and b/resources/icons/apple-touch-icon-72x72-precomposed.png differ
diff --git a/resources/icons/apple-touch-icon-72x72.png b/resources/icons/apple-touch-icon-72x72.png
index e34f93a..3aa3aff 100644
Binary files a/resources/icons/apple-touch-icon-72x72.png and b/resources/icons/apple-touch-icon-72x72.png differ
diff --git a/resources/icons/apple-touch-icon-76x76-precomposed.png b/resources/icons/apple-touch-icon-76x76-precomposed.png
new file mode 100644
index 0000000..abaf04a
Binary files /dev/null and b/resources/icons/apple-touch-icon-76x76-precomposed.png differ
diff --git a/resources/icons/apple-touch-icon-76x76.png b/resources/icons/apple-touch-icon-76x76.png
index 0106c6b..a2d3734 100644
Binary files a/resources/icons/apple-touch-icon-76x76.png and b/resources/icons/apple-touch-icon-76x76.png differ
diff --git a/resources/icons/apple-touch-icon-precomposed.png b/resources/icons/apple-touch-icon-precomposed.png
index ae09341..8553085 100644
Binary files a/resources/icons/apple-touch-icon-precomposed.png and b/resources/icons/apple-touch-icon-precomposed.png differ
diff --git a/resources/icons/apple-touch-icon.png b/resources/icons/apple-touch-icon.png
index ae819ae..e537d48 100644
Binary files a/resources/icons/apple-touch-icon.png and b/resources/icons/apple-touch-icon.png differ
diff --git a/resources/icons/browserconfig.xml b/resources/icons/browserconfig.xml
index 81ec113..df8a72d 100644
--- a/resources/icons/browserconfig.xml
+++ b/resources/icons/browserconfig.xml
@@ -1,12 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
 <browserconfig>
-  <msapplication>
-    <tile>
-      <square70x70logo src="/mstile-70x70.png"/>
-      <square150x150logo src="/mstile-150x150.png"/>
-      <square310x310logo src="/mstile-310x310.png"/>
-      <wide310x150logo src="/mstile-310x150.png"/>
-      <TileColor>#00aba9</TileColor>
-    </tile>
-  </msapplication>
+    <msapplication>
+        <tile>
+            <square70x70logo src="/mstile-70x70.png"/>
+            <square150x150logo src="/mstile-150x150.png"/>
+            <square310x310logo src="/mstile-310x310.png"/>
+            <TileColor>#da532c</TileColor>
+        </tile>
+    </msapplication>
 </browserconfig>
diff --git a/resources/icons/favicon-16x16.png b/resources/icons/favicon-16x16.png
index 67dac1b..aa2cc02 100644
Binary files a/resources/icons/favicon-16x16.png and b/resources/icons/favicon-16x16.png differ
diff --git a/resources/icons/favicon-32x32.png b/resources/icons/favicon-32x32.png
index 589913e..6358f95 100644
Binary files a/resources/icons/favicon-32x32.png and b/resources/icons/favicon-32x32.png differ
diff --git a/resources/icons/favicon.ico b/resources/icons/favicon.ico
index bfd010a..06d5fd9 100644
Binary files a/resources/icons/favicon.ico and b/resources/icons/favicon.ico differ
diff --git a/resources/icons/logo.png b/resources/icons/logo.png
index 2ac6656..9eb296a 100644
Binary files a/resources/icons/logo.png and b/resources/icons/logo.png differ
diff --git a/resources/icons/logo.svg b/resources/icons/logo.svg
deleted file mode 100644
index 3a3e1ab..0000000
--- a/resources/icons/logo.svg
+++ /dev/null
@@ -1,16 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="160" height="44">
-  <g transform="matrix(.08265 0 0 -.0827 -18.736 55.375)">
-    <path fill="#FCDB05" stroke="#FCDB05" stroke-width="10" d="M477.898 612.007c-107.844-.25-215.89-92.284-206.703-227.507 6.614-97.33 93.848-202.26 227.87-192.475 101.47 7.41 194.44 95.456 192.42 213.653-1.96 114.6-97.744 208.65-213.587 206.33m3.533-437.256c-123.62-2.002-228.5 102.77-227.64 227.46.87 125.882 103.18 228.238 229.38 226.488 124.6-1.727 225.85-98.733 224.96-230.748-.82-122.186-101.1-223.51-226.69-223.2"/>
-    <path fill="#fcdb05" d="M515.264 390.9c14.44-20.215 31.333-37.793 47.34-56.057 18.196-20.76 18.438-20.43-3.845-36.05-7.16-5.014-14.16-10.288-20.88-15.868-6.27-5.203-10.51-6.375-15.06 2.458-12.79 24.824-43.17 77.232-46.028 76.716-2.73-.5-32.438-53.09-46.36-77.37-4.567-7.97-8.044-6.92-14.116-1.95-10.807 8.84-21.825 17.57-33.59 25.03-7.504 4.75-7.585 8.08-2.073 14.2 18.23 20.26 57.116 65.45 59.423 68.69-28.8 5.974-56.39 11.873-84.065 17.355-10.37 2.055-13.786 4.4-9.2 16.78 4.32 11.65 10.353 23.38 11.56 36.02 1.067 11.187 6.41 11.39 14.473 7.76 24.793-11.16 77.644-34.635 80.63-35.575 1.073 21.123-7.233 79.865-8.628 88.975-1.027 6.686 1.18 9.43 8.496 9.157 14.638-.545 29.38-1.074 43.94.132 11.26.932 13.05-4.163 11.42-12.94-5.17-27.87-5.52-56.143-7.755-85.808 25.865 11.322 51.147 21.774 75.85 33.45 14 6.613 16.357 6.306 19.824-7.96 2.892-11.905 7.53-23.366 11.466-34.877 4.11-12.01-1.486-13.28-9.816-15.007-27.35-5.66-54.684-11.38-83.012-17.28"/>
-  </g>
-  <g transform="matrix(.53656 0 0 .52273 46.09 -512.12)">
-    <path fill="#FCDB05" d="M1.8 1045v-46.4h16.4q24.7 0 24.7 22.6 0 10.8-6.8 17.3-6.7 6.5-18 6.5H1.7zm10.4-37.9v29.4h5.2q6.8 0 10.6-4.1 3.9-4.1 3.9-11.1 0-6.6-3.8-10.4-3.8-3.8-10.7-3.8h-5.1z"/>
-    <path fill="#ffde05" d="M101.5 1045H91.2v-27.8q0-4.5.4-9.9h-.3q-.8 4.3-1.5 6.1l-10.9 31.5h-8.5l-11.1-31.2q-.5-1.3-1.5-6.5h-.3q.4 6.9.4 12v25.7h-9.4v-46.4h15.3l9.5 27.5q1.1 3.3 1.6 6.6h.2q.9-3.8 1.8-6.7l9.5-27.4h14.9v46.4z"/>
-    <g fill="#ffde05">
-      <path d="M113.6 1018.2q-2.5 0-4.2-1.5-1.7-1.6-1.7-3.8 0-2.3 1.7-3.8t4.3-1.5q2.6 0 4.3 1.5 1.7 1.5 1.7 3.8 0 2.4-1.7 3.8-1.7 1.5-4.4 1.5zm0 23.7q-2.5 0-4.2-1.6-1.7-1.6-1.7-3.8 0-2.3 1.7-3.8t4.3-1.5q2.6 0 4.3 1.5 1.7 1.5 1.7 3.8 0 2.4-1.7 3.9t-4.4 1.5z"/>
-      <path d="M129.6 1018.2q-2.5 0-4.2-1.5-1.7-1.6-1.7-3.8 0-2.3 1.7-3.8t4.3-1.5q2.6 0 4.3 1.5 1.7 1.5 1.7 3.8 0 2.4-1.7 3.8-1.7 1.5-4.4 1.5zm0 23.7q-2.5 0-4.2-1.6-1.7-1.6-1.7-3.8 0-2.3 1.7-3.8t4.3-1.5q2.6 0 4.3 1.5 1.7 1.5 1.7 3.8 0 2.4-1.7 3.9t-4.4 1.5z"/>
-    </g>
-    <path fill="#aaa" d="M161.7 1045.8q-10 0-16.2-6.5-6.3-6.5-6.3-16.9 0-11 6.4-17.8 6.4-6.8 16.9-6.8 9.9 0 16 6.5t6.1 17.1q0 10.9-6.4 17.6-6.3 6.7-16.6 6.7zm.5-39q-5.5 0-8.7 4.1-3.2 4.1-3.2 10.9 0 6.9 3.2 10.9t8.5 4q5.4 0 8.6-3.9 3.2-3.9 3.2-10.8 0-7.2-3.1-11.2-3.1-4-8.4-4z"/>
-    <path fill="#aaa" d="M209.6 1026.6q0 9.3-4.3 14.3-4.3 4.9-12.5 4.9-3.7 0-6.8-1.3v-9.8q2.7 2 6 2 7.1 0 7.1-10.6v-27.6h10.5v28z"/>
-  </g>
-</svg>
diff --git a/resources/icons/manifest.json b/resources/icons/manifest.json
index e836e9f..967bb04 100644
--- a/resources/icons/manifest.json
+++ b/resources/icons/manifest.json
@@ -1,5 +1,5 @@
 {
-	"name": "DMOJ",
+	"name": "LQDOJ",
 	"icons": [
 		{
 			"src": "\/android-chrome-36x36.png",
diff --git a/resources/icons/mstile-144x144.png b/resources/icons/mstile-144x144.png
index 4414980..c005af3 100644
Binary files a/resources/icons/mstile-144x144.png and b/resources/icons/mstile-144x144.png differ
diff --git a/resources/icons/mstile-150x150.png b/resources/icons/mstile-150x150.png
index 58a7920..800d2b7 100644
Binary files a/resources/icons/mstile-150x150.png and b/resources/icons/mstile-150x150.png differ
diff --git a/resources/icons/mstile-310x150.png b/resources/icons/mstile-310x150.png
index 7bed315..ffd4452 100644
Binary files a/resources/icons/mstile-310x150.png and b/resources/icons/mstile-310x150.png differ
diff --git a/resources/icons/mstile-310x310.png b/resources/icons/mstile-310x310.png
index a1145ee..cbf683a 100644
Binary files a/resources/icons/mstile-310x310.png and b/resources/icons/mstile-310x310.png differ
diff --git a/resources/icons/mstile-70x70.png b/resources/icons/mstile-70x70.png
index 10e2213..86a935d 100644
Binary files a/resources/icons/mstile-70x70.png and b/resources/icons/mstile-70x70.png differ
diff --git a/resources/icons/safari-pinned-tab.svg b/resources/icons/safari-pinned-tab.svg
index 6eb3669..3b41b63 100644
--- a/resources/icons/safari-pinned-tab.svg
+++ b/resources/icons/safari-pinned-tab.svg
@@ -2,18 +2,57 @@
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 20010904//EN"
  "http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd">
 <svg version="1.0" xmlns="http://www.w3.org/2000/svg"
- width="960.000000pt" height="960.000000pt" viewBox="0 0 960.000000 960.000000"
+ width="223.000000pt" height="223.000000pt" viewBox="0 0 223.000000 223.000000"
  preserveAspectRatio="xMidYMid meet">
 <metadata>
 Created by potrace 1.11, written by Peter Selinger 2001-2013
 </metadata>
-<g transform="translate(0.000000,960.000000) scale(0.100000,-0.100000)"
+<g transform="translate(0.000000,223.000000) scale(0.100000,-0.100000)"
 fill="#000000" stroke="none">
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diff --git a/resources/style.scss b/resources/style.scss
index 9d52085..98d9ede 100644
--- a/resources/style.scss
+++ b/resources/style.scss
@@ -12,3 +12,4 @@
 @import "submission";
 @import "contest";
 @import "misc";
+@import "chatbox";
diff --git a/resources/submission.scss b/resources/submission.scss
index 5d3e54b..ea71252 100644
--- a/resources/submission.scss
+++ b/resources/submission.scss
@@ -203,9 +203,7 @@ label[for="language"], label[for="status"] {
 }
 
 #test-cases {
-    .toggle .fa {
-        margin-left: -1.28571em;
-    }
+    font-size: 1.1em;
 
     .batch-cases {
         margin: 0;
@@ -215,28 +213,13 @@ label[for="language"], label[for="status"] {
         display: inline-block;
     }
 
-    .batch-cases .case-row td b {
-        font-weight: 500;
-    }
-
-    .case-row td:nth-child(3) {
-        padding-right: 0;
-        text-align: right;
-    }
-
-    .case-row td:nth-child(3) span {
-        float: right;
-    }
-
-    .case-row td:nth-child(4) {
-        text-align: right;
-    }
+    // .batch-cases .case-row td b {
+    //     font-weight: 500;
+    // }
 
     .case-info {
         margin: 0;
-        padding-left: 1em;
-        padding-bottom: 3px;
-        padding-top: 3px;
+        padding: 1em;
         border: 1px solid #2980b9;
         border-left-width: .5em;
         border-radius: 4px;
@@ -245,18 +228,50 @@ label[for="language"], label[for="status"] {
 
     .case-output {
         margin: 0;
-        margin-right: 1em;
+        margin-top: 1em;
+        box-shadow: 0 1px 2px 0 rgba(34,36,38,.15);
+        margin: 1rem 0;
+        padding: 1em 1em;
+        border-radius: .28571429rem;
+        border: 1px solid rgba(34,36,38,.15);
+        font-family: Consolas;
     }
 
-    table td {
-        margin: 0;
-        padding: 0 5px 0 0;
+    #testcases-table {
+        width: 100%;
+        border: 1px solid grey;
+        border-radius: 0.5em;
+        border-spacing: 0;
+
+        thead td:first-child {
+            border-top-left-radius: 0.5em;
+        }
+
+        thead td:last-child {
+            border-top-right-radius: 0.5em;
+        }
+
+        td {
+            padding: 0.6em 0.8em;
+            width: 18.75%;
+            border-bottom: 0.7px grey solid;
+        }
+
+        .case-row td:nth-child(2) {
+            width: 25%;
+        }
+
+        .case-row:hover {
+            cursor: pointer;
+        }
+
     }
 
     .toggle {
         font-weight: normal;
     }
 
+
     .case-feedback {
         vertical-align: top;
     }
@@ -266,6 +281,31 @@ label[for="language"], label[for="status"] {
     }
 }
 
+#overall-row:hover {
+    cursor: default !important;
+}
+
+.overall-result-AC {
+    background: linear-gradient(45deg, #a8ff78, #78ffd6);
+}
+
+.overall-result-WA {
+    background: linear-gradient(45deg, yellow, red);   
+}
+
+.overall-result-TLE {
+    background: linear-gradient(45deg, #D7DDE8, #757F99);
+}
+
+.overall-result-RTE,
+.overall-result-MLE {
+    background: linear-gradient(45deg,  #fceabb, #f8b500)
+}
+
+.col-title {
+    font-weight: bold;
+}
+
 .case-AC {
     color: green;
     font-weight: bold;
diff --git a/resources/table.scss b/resources/table.scss
index 0abb0be..5570ff2 100644
--- a/resources/table.scss
+++ b/resources/table.scss
@@ -42,9 +42,9 @@ $table_header_rounding: 6px;
 
     th {
         height: 2em;
-        color: #FFF;
+        color: white;
         background-color: $widget_black;
-        border-color: #555;
+        border-color: #cccccc;
         border-width: 1px 1px 0 0;
         border-style: solid;
         padding: 4px 10px;
diff --git a/resources/vars.scss b/resources/vars.scss
index 3f157ea..bd43b26 100644
--- a/resources/vars.scss
+++ b/resources/vars.scss
@@ -1,5 +1,5 @@
-$highlight_blue: #2980B9;
-$widget_black: #3b3b3b;
+$highlight_blue: white;
+$widget_black: #00007d;//68BBE3, add8e6
 $border_gray: #ccc;
 $background_gray: #ededed;
 $background_light_gray: #fafafa;
diff --git a/resources/widgets.scss b/resources/widgets.scss
index fb8787b..88768dc 100644
--- a/resources/widgets.scss
+++ b/resources/widgets.scss
@@ -305,8 +305,8 @@ ul.pagination {
         .active-page > {
             a {
                 z-index: 2;
-                color: #FFF;
-                background-color: $highlight_blue;
+                color: black;
+                background-color: #7dc7ff;
                 border-color: transparent;
                 cursor: default;
             }
diff --git a/templates/about/custom-checker-sample.html b/templates/about/custom-checker-sample.html
index a2a74da..c3bb67f 100644
--- a/templates/about/custom-checker-sample.html
+++ b/templates/about/custom-checker-sample.html
@@ -1,1106 +1,131 @@
 {% extends "base.html" %}
-
 {% block body %}
-    <!DOCTYPE html><html><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1"><style>body {
-  max-width: 980px;
-  border: 1px solid #ddd;
-  outline: 1300px solid #fff;
-  margin: 16px auto;
-}
-
-body .markdown-body
-{
-  padding: 45px;
-}
-
-@font-face {
-  font-family: fontawesome-mini;
-  src: 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-</style><title>custom</title></head><body><article class="markdown-body"><h2 id="original-document"><a href="https://docs.dmoj.ca/#/problem_format/custom_checkers">Original Document</a><a class="headerlink" href="#original-document" title="Permanent link"></a></h2>
-<p>A <code>checker</code> Python script must implement a function that is called by the judge:</p>
-<div class="codehilite"><pre><span class="k">def</span> <span class="nf">check</span><span class="p">(</span><span class="n">process_output</span><span class="p">,</span> <span class="n">judge_output</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
-    <span class="c1"># return True/False</span>
-</pre></div>
-
-<p>Variables in global scope will exist throughout the grading process.</p>
-<p><code>**kwargs</code> is a directory containing</p>
-<ul>
-<li><code>submission_source</code>: the source code of the submission</li>
-<li><code>judge_input</code>: the judge&rsquo;s input</li>
-<li><code>point_value</code>: the point value of the test case</li>
-<li><code>case_position</code>: the index of the test case</li>
-<li><code>batch</code>: the batched the test case belongs to</li>
-<li><code>submission_language</code>: the language the submission was submitted in</li>
-<li><code>binary_data</code>: a boolean, which is <code>True</code> if the data was not normalized to Linux line endings, and <code>False</code> otherwise</li>
-<li><code>execution_time</code>: the runtime of the program, in seconds</li>
-</ul>
-<p>Additionally, if the <code>check</code> method has the flag <code>run_on_error</code> set, it will be run against the submission&rsquo;s output, even if it receives an IR/TLE/RTE/MLE verdict.
-The only built-in checker that has this flag set is the <code>linecount</code> checker.</p>
-<h2 id="return">Return:<a class="headerlink" href="#return" title="Permanent link"></a></h2>
-<p><code>True</code> for correct output, <code>False</code> for incorrect one</p>
-<h2 id="sample-checker">Sample Checker:<a class="headerlink" href="#sample-checker" title="Permanent link"></a></h2>
-<p>Here is the checker for the problem: Print 2 integers having sum equal to n (n is read from input).</p>
-<div class="codehilite"><pre><span class="k">def</span> <span class="nf">check</span><span class="p">(</span><span class="n">process_output</span><span class="p">,</span> <span class="n">judge_output</span><span class="p">,</span> <span class="n">judge_input</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
-    <span class="c1"># process the input</span>
-    <span class="n">input_arr</span> <span class="o">=</span> <span class="n">judge_input</span><span class="o">.</span><span class="n">split</span><span class="p">()</span>
-    <span class="k">assert</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">input_arr</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span><span class="p">)</span>
-    <span class="n">n</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">input_arr</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span>
-
-    <span class="c1">#  process the contestant&#39;s output</span>
-    <span class="n">output_arr</span> <span class="o">=</span> <span class="n">process_output</span><span class="o">.</span><span class="n">split</span><span class="p">()</span>
-
-    <span class="k">if</span> <span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">output_arr</span><span class="p">)</span> <span class="o">!=</span> <span class="mi">2</span><span class="p">):</span>
-        <span class="k">return</span> <span class="bp">False</span>
-
-    <span class="k">try</span><span class="p">:</span>
-        <span class="n">a</span><span class="p">,</span> <span class="n">b</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">output_arr</span><span class="p">[</span><span class="mi">0</span><span class="p">]),</span> <span class="nb">int</span><span class="p">(</span><span class="n">output_arr</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span>
-    <span class="k">except</span><span class="p">:</span>
-        <span class="k">return</span> <span class="bp">False</span>
-
-    <span class="k">if</span> <span class="p">(</span><span class="n">n</span> <span class="o">==</span> <span class="n">a</span> <span class="o">+</span> <span class="n">b</span><span class="p">):</span>
-        <span class="k">return</span> <span class="bp">True</span>
-    <span class="k">return</span> <span class="bp">False</span>
-</pre></div></article></body></html>
+    <style>
+        article {
+            padding: 2.5em 3.5em;
+            font-size: 1.1em;
+        }
+        .code2 {
+            color: #333333;
+            background-color: #f7f7f7;
+            font-family: Consolas;
+            line-height: 1.45;
+        }
+        .code2 {
+            padding: 1em;
+        }
+        li {
+            padding: 0.2em;
+        }
+    </style>
+    <script>
+
+    </script>
+
+    <article id="py">
+        <h2>1. Custom checker (PY)</h2>
+        <hr>
+        <p>
+            Đây là checker mặc định của website, cho phép người dùng cập nhật được nhiều thông tin nhất (chi tiết xem ở  bên dưới). Chúng ta cần hoàn thành hàm check dưới đây:
+        </p>
+
+        <pre class="code2">
+def check(process_output, judge_output, **kwargs):
+    # return True/False</pre>
+        
+        <p>
+            Trong đó, <code>**kwargs</code> có thể chứa các biến sau:
+        </p>
+        <ul>
+            <li><code>process_output:</code> output</li>
+            <li><code>judge_output:</code> đáp án</li>
+            <li><code>submission_source</code>: Code bài nộp</li>
+            <li><code>judge_input</code>: input</li>
+            <li><code>point_value:</code> điểm của test đang chấm</li>
+            <li><code>case_position:</code> thứ tự của test</li>
+            <li><code>submission_language:</code> ngôn ngữ của bài nộp</li>
+            <li><code>execution_time:</code> thời gian chạy</li>
+        </ul>
+        <h2>Return: </h2>
+        <ol>
+            <li>Cách 1: Trả về True/False</li>
+            <li>Cách 2: Trả về một object <code>CheckerResult</code> có thể được gọi như sau <pre class="code2">CheckerResult(case_passed_bool, points_awarded, feedback='')</pre></li>
+        </ol>
+
+        <h2>Ví dụ: </h2>
+        <p>Dưới đây là ví dụ cho bài toán: Input gồm 1 số nguyên n. In ra 2 số nguyên a, b sao cho a + b = n.
+        </p>
+        <pre class="code2">
+from dmoj.result import CheckerResult
+
+
+def wa(feedback):
+    return CheckerResult(False, 0, feedback)
+
+
+def check(process_output, judge_output, judge_input, **kwargs):
+    # process the input
+    input_arr = judge_input.split()
+    assert(len(input_arr) == 1)
+    n = int(input_arr[0])
+
+    #  process the contestant's output
+    output_arr = process_output.split()
+
+    if (len(output_arr) != 2):
+        return wa('Wrong output format')
+
+    try:
+        a, b = int(output_arr[0]), int(output_arr[1])
+    except:
+        return wa('Wrong output format')
+
+    if (n == a + b):
+        return True
+    return wa('a + b != n')</pre>
+    </article>
+    <article id="cpp">
+        <h2>2. Custom validator (CPP)</h2>
+        <hr>
+        <p>
+        Để sử dụng chức năng này, cần viết một chương trình C++ pass vào 3 arguments theo thứ tự <code>input_file</code>, <code>output_file</code>, <code>ans_file</code> tương ứng với các file input, output, đáp án.
+        </p>
+        <p>
+            Để test chương trình trên máy tính, có thể dùng lệnh như sau (Windows):
+            <pre class="code2">
+main.exe [input_file] [output_file] [ans_file]</pre> 
+            hoặc thay bằng <code>./main</code> trên Linux/MacOS.
+        </p>
+        <h2>Return: </h2>
+        <p>
+            Chương trình trả về giá trị 0 nếu AC, 1 nếu WA. Những thông tin được viết ra stdout (bằng cout) sẽ được in ra màn hình cho người nộp bài(feedback)
+        </p>
+
+        <h2>Ví dụ: </h2>
+        <pre class="code2">
+#include &lt;bits/stdc++.h&gt;
+using namespace std;
+
+int main(int argc, char** argv) {
+    ifstream inp(argv[1]);
+    ifstream out(argv[2]);
+    ifstream ans(argv[3]);
+
+    int n, a, b, c, d;
+    
+    inp &gt;&gt; n;
+    out &gt;&gt; a &gt;&gt; b;
+    ans &gt;&gt; c &gt;&gt; d;
+
+    if (a + b == c + d) {
+        cout &lt;&lt; a &lt;&lt; &quot; + &quot; &lt;&lt; b &lt;&lt; &quot; = &quot; &lt;&lt; c &lt;&lt; &quot; + &quot; &lt;&lt; d &lt;&lt; endl;
+        return 0; // AC
+    }     
+    else {
+        cout &lt;&lt; &quot;a + b = &quot; &lt;&lt; a + b &lt;&lt; &quot; != &quot; &lt;&lt; n &lt;&lt; endl;
+        return 1; // WA
+    }
+}
+        </pre>
+    </article>
 {% endblock body %}
\ No newline at end of file
diff --git a/templates/chat/chat.html b/templates/chat/chat.html
index 7b1eb9a..62e697c 100644
--- a/templates/chat/chat.html
+++ b/templates/chat/chat.html
@@ -1,5 +1,4 @@
 {% extends "base.html" %}
-
 {% block js_media %}
 <script type="text/javascript">
     var chatSocket = new WebSocket(
@@ -8,33 +7,166 @@
 </script>
 <script type="text/javascript">
     $(function() {
+        let currentPage = 1;
+
+        $('#loader').hide();
+
         chatSocket.onmessage = function(e) {
-            var data = JSON.parse(e.data);
-            var message = data['message'];
-            $('#chat-log').append(message + '\n');
+            let data = JSON.parse(e.data)
+            data = data['message']
+            loadMessage(data['body'],
+                        data['author'],
+                        data['time'],
+                        data['image'],
+                        true)
+            $('#chat-box').scrollTop($('#chat-box')[0].scrollHeight);
         };
+        
+        function encodeHTML(content) {
+            return content.replace(/[\u00A0-\u9999<>\&]/gim, function(i) {
+                   return '&#'+i.charCodeAt(0)+';';
+            });
+        }
+
+        function loadMessage(content, user, time, image, isNew) {
+            if (isNew) content = encodeHTML(content)
+            li = `<li class="message"> 
+                    <img src="${image}" class="profile-pic">
+                    <div class="body-message">
+                        <div class="user-time">
+                            <a href="{{ url('user_page') }}/${user}" class="user">
+                                ${user}
+                            </a>
+                            <span class="time">${time}</span>
+                        </div>
+                        <span class="content-message">${content}                   </span>
+                    </div>
+                    <div class="clear"></div>
+                </li>`
+            ul = $('#chat-log')
+            if (isNew) {
+                ul.append(li)
+            }
+            else {
+                ul.prepend(li)
+            }
+        }
+
+        (function init_chatlog() {
+            ul = $('#chat-log')
+            {% for msg in message %}
+                loadMessage(`{{msg.body}}`, `{{msg.author}}`, `{{msg.time}}`, `{{gravatar(msg.author, 32)}}`)
+            {% endfor %}
+            $('#chat-box').scrollTop($('#chat-box')[0].scrollHeight);
+        })()
+
+        function scrollTopOfBottom(container) {
+            return container[0].scrollHeight - container.innerHeight()
+        }
+
+        function scrollContainer(container, loader) {
+            container.scroll(function() {
+            if (container.scrollTop() == 0) {
+                if (currentPage < {{paginator.num_pages}}) {
+                    currentPage++;
+                    loader.show();
+                    $.ajax({
+                        url: `{{request.path}}?page=${currentPage}`,
+                        success: function(data) {
+                            let lastMsg = $('.message:first')
+                            let lastMsgPos = scrollTopOfBottom(container)
+
+                            data = JSON.parse(data)
+                            setTimeout( () => {
+                                for (msg of data) {
+                                    loadMessage(msg.body, msg.author, msg.time, msg.image)
+                                }
+                                
+                                loader.hide()
+
+                                // scroll to last msg
+                                container.scrollTop(
+                                    scrollTopOfBottom(container) - lastMsgPos
+                                )
+                            }, 500)
+                        }
+                    })
+                }
+            }
+        })}
+
+        scrollContainer($('#chat-box'), $('#loader'))
+
+        
+        $("#chat-submit").click(function() {
+            if ($("#chat-input").val().trim()) {
+                let body = $('#chat-input').val().trim();
+                let img = '{{ gravatar(request.user, 32) }}'
+                
+                message = {
+                    'body': body,
+                    'image': img,
+                    'author': '{{request.profile}}',
+                    'author_id': {{request.profile.id}},
+                }
+
+                chatSocket.send(JSON.stringify({
+                    'message': message
+                }));
+
+                $('#chat-input').val('').focus();
+            }
+        });
+
         chatSocket.onclose = function(e) {
             console.error('Chat socket closed unexpectedly');
         };
-        $('#chat-message-input').focus();
-        $('#chat-message-input').keyup(function(e) {
-            if (e.keyCode === 13) {  // enter, return
-                $('#chat-message-submit').click();
+
+        $("#chat-log").change(function() {
+            $('#chat-log').scrollTop($('#chat-log')[0].scrollHeight);
+        });
+        
+        $('#chat-input').focus();
+
+        $('#chat-input').keydown(function(e) {
+            if (e.keyCode === 13) {
+                if (e.ctrlKey || e.shiftKey) {
+                    var val = this.value;
+                    if (typeof this.selectionStart == "number" && typeof this.selectionEnd == "number") {
+                        var start = this.selectionStart;
+                        this.value = val.slice(0, start) + "\n" + val.slice(this.selectionEnd);
+                        this.selectionStart = this.selectionEnd = start + 1;
+                    } else if (document.selection && document.selection.createRange) {
+                        this.focus();
+                        var range = document.selection.createRange();
+                        range.text = "\r\n";
+                        range.collapse(false);
+                        range.select();
+                    }
+                }
+                else {
+                    e.preventDefault();
+                    $('#chat-submit').click();
+                }
+                return false
             }
+            return true
         });
-        $("#chat-message-submit").click(function() {
-            var message = "{{ request.user }}: " + $('input#chat-message-input').val();
-            chatSocket.send(JSON.stringify({
-                'message': message,
-            }));
-            $('input#chat-message-input').val('');
-        });
+
     });
 </script>
 {% endblock js_media %}
 
 {% block body %}
-    <textarea id="chat-log" cols="100" rows="20"></textarea><br/>
-    <input id="chat-message-input" type="text" size="100"/><br/>
-    <button id="chat-message-submit"> Send </button>
+    <div id="chat-area">
+        <div id="chat-box">
+            <img src="http://opengraphicdesign.com/wp-content/uploads/2009/01/loader64.gif" id="loader">
+            <ul id="chat-log">
+            </ul>
+        </div>
+        {{_('Your message')}}
+    
+        <textarea rows="6" id="chat-input"></textarea>
+    </div>
+    <button id="chat-submit"> Send </button>
 {% endblock body %}
diff --git a/templates/problem/data.html b/templates/problem/data.html
index 389ec64..9bba683 100644
--- a/templates/problem/data.html
+++ b/templates/problem/data.html
@@ -95,21 +95,29 @@
                 }).change();
             }
 
-            function checker_custom($checker, $custom_checker) {
-                $tr = $custom_checker.parent().parent();
+            (function toggle_custom() {
+                let $custom_checker = $('#id_problem-data-custom_checker')
+                let $checker = $('#id_problem-data-checker')
+                let $validator = $('#id_problem-data-custom_validator')
+                
+                $tr_checker = $custom_checker.parent().parent();
+                $tr_validator = $validator.parent().parent()
+
                 $td = $checker.parent();
                 var $sample = $("<a/>",{
-                    text: "Sample Checker",
+                    text: "{{_('Instruction')}}",
                     style: "margin-left:3em;",
                     target: "_blank",
                     href: "{{url('custom_checker_sample')}}"
                 }).appendTo($td);
 
                 $checker.change(function () {
-                    $tr.toggle($checker.val().startsWith('custom')).change();
+                    $tr_checker.toggle($checker.val() == 'custom').change();
+                    $tr_validator.toggle($checker.val() == 'customval').change();
                     $sample.toggle($checker.val().startsWith('custom')).change();
                 }).change();
-            }
+            })();
+
 
             function swap_row($a, $b) {
                 var $a_order = $a.find('input[id$=order]'), $b_order = $b.find('input[id$=order]');
@@ -123,8 +131,7 @@
             }
 
             checker_precision($('#id_problem-data-checker'));
-            checker_custom($('#id_problem-data-checker'), $('#id_problem-data-custom_checker'));
-
+            
             $table.on('add-row', function (e, $tr) {
                 var $order = $tr.find('input').filter('[id$=order]').attr('type', 'hidden').val(++order);
                 $order.after($('<span>', {'class': 'order'}).text($order.val()))
@@ -225,7 +232,7 @@
             $('a#fill-testcases').click(function () {
                 var inFiles = [], outFiles = [];
                 for (var i = 0; i < window.valid_files.length; i++) {
-                    if (window.valid_files[i].endsWith(".in")) {
+                    if (window.valid_files[i].endsWith(".in") || window.valid_files[i].endsWith(".inp")) {
                         inFiles.push(window.valid_files[i]);
                     }
                     if (window.valid_files[i].endsWith(".out")) {
@@ -233,7 +240,7 @@
                     }
                 }
                 if (inFiles.length == 0) {
-                    alert("No input/output files. Make sure your files' suffices are .in/.out");
+                    alert("No input/output files. Make sure your files' suffices are .in(p)/.out");
                     return false;
                 }
                 if (inFiles.length != outFiles.length) {
@@ -248,6 +255,9 @@
                 for (var i = 0; i < inFiles.length; i++) {
                     $("#id_cases-" + i + "-input_file").val(inFiles[i]).change();
                 }
+                for (var i = 0; i < outFiles.length; i++) {
+                    $("#id_cases-" + i + "-output_file").val(outFiles[i]).change();
+                }
                 // add points
                 if ($('#problem-type').val() == "ICPC") {
                     for (i = 0; i + 1 < inFiles.length; i++) {
@@ -303,26 +313,6 @@
                     $("input[name$='DELETE']").attr('checked', false);
                 }
             });
-
-            var $controls = $('#column-visible');
-            var problem = $controls.attr('data-problem');
-            $controls.find('input').change(function () {
-                var $this = $(this), suffix = $this.attr('data-suffix'), checked = $this.is(':checked');
-                $table.find('.' + suffix.replace(/_/g, '-')).toggle(checked);
-                localStorage.setItem('data-visible:' + problem + ':' + suffix, checked ? '1' : '0')
-            }).each(function () {
-                var $this = $(this), suffix = $this.attr('data-suffix'), filled = false;
-                filled = localStorage.getItem('data-visible:' + problem + ':' + suffix);
-                if (filled !== null)
-                    filled = filled == '1';
-                else {
-                    filled = false;
-                    $table.find('[id$=' + suffix + ']').each(function () {
-                        filled |= !!$(this).val();
-                    });
-                }
-                $this.prop('checked', filled).trigger('change');
-            });
         }).change();
     </script>
 {% endblock %}
@@ -448,29 +438,7 @@
                 </a>
             </td>
         </table>
-        <div id="column-visible" data-problem="{{ problem.code }}">
-            <strong>{{ _('Show columns:') }}</strong>
-            <label>
-                <input type="checkbox" data-suffix="output_prefix">
-                {{ _('Output prefix') }}
-            </label>
-            <label>
-                <input type="checkbox" data-suffix="output_limit">
-                {{ _('Output limit') }}
-            </label>
-            <label>
-                <input type="checkbox" data-suffix="checker">
-                {{ _('Checker') }}
-            </label>
-            <label>
-                <input type="checkbox" data-suffix="generator_args">
-                {{ _('Generator args') }}
-            </label>
-            <label>
-                <input type="checkbox" id="delete-all">
-                {{ _('Delete all') }}
-            </label>
-        </div>
+        <input type="submit" value="{{ _('Apply!') }}" class="button" id="submit-button">
         <table id="case-table" class="table">
             <thead>
             <tr>
@@ -480,12 +448,10 @@
                 <th>{{ _('Output file') }}</th>
                 <th>{{ _('Points') }}</th>
                 <th>{{ _('Pretest?') }}</th>
-                <th class="output-prefix">{{ _('Output prefix') }}</th>
-                <th class="output-limit">{{ _('Output limit') }}</th>
-                <th class="checker">{{ _('Checker') }}</th>
-                <th class="generator-args">{{ _('Generator args') }}</th>
                 {% if cases_formset.can_delete %}
-                    <th>{{ _('Delete?') }} 
+                    <th>{{ _('Delete?') }}
+                        <br>
+                        <input type="checkbox" name="delete-all" id="delete-all"> 
                     </th>
                 {% endif %}
             </tr>
@@ -514,25 +480,15 @@
                     </td>
                     <td>{{ form.points.errors }}{{ form.points }}</td>
                     <td>{{ form.is_pretest.errors }}{{ form.is_pretest }}</td>
-                    <td class="output-prefix">{{ form.output_prefix.errors }}{{ form.output_prefix }}</td>
-                    <td class="output-limit">{{ form.output_limit.errors }}{{ form.output_limit }}</td>
-                    <td class="checker">
-                        {{ form.checker.errors }}{{ form.checker }}{{ form.checker_args.errors }}{{ form.checker_args }}
-                    </td>
-                    <td class="generator-args">{{ form.generator_args.errors }}{{ form.generator_args }}
-                        <a href="javascript:void(0)" class="edit-generator-args">
-                            <i class="fa fa-pencil"></i>
-                            {{ _('Edit') }}
-                        </a>
-                    </td>
                     {% if cases_formset.can_delete %}
-                        <td>{{ form.DELETE }}</td>
+                        <td>{{ form.DELETE }}
+                        </td>
                     {% endif %}
                 </tr>
             {% endfor %}
             </tbody>
         </table>
-        <input type="submit" value="{{ _('Submit!') }}" class="button" id="submit-button">
+        <input type="submit" value="{{ _('Apply!') }}" class="button" id="submit-button">
         <a id="add-case-row" href="#"><i class="fa fa-plus"></i> {{ _('Add new case') }}</a>
     </form>
     <div style="display: none" class="generator-args-editor"><textarea></textarea><a class="button">Save</a></div>
diff --git a/templates/submission/source.html b/templates/submission/source.html
index 6abd01e..a3f0f50 100644
--- a/templates/submission/source.html
+++ b/templates/submission/source.html
@@ -38,7 +38,7 @@
         </div>
     {% endif %}
     <br>
-    <hr class="half-hr">
+    <hr>
     <br>
     <div class="source-wrap">
         <table>
diff --git a/templates/submission/status-testcases.html b/templates/submission/status-testcases.html
index b9d9520..d46b58d 100644
--- a/templates/submission/status-testcases.html
+++ b/templates/submission/status-testcases.html
@@ -17,7 +17,7 @@
         {% if submission.error %}
             <h3>{{ _('Compilation Warnings') }}</h3>
             <pre>{{ submission.error|ansi2html }}</pre>
-            <hr class="half-hr"><br>
+            <hr><br>
         {% endif %}
         {% if is_pretest %}
             <h3>{{ _('Pretest Execution Results') }}</h3>
@@ -33,7 +33,48 @@
                 <br>
                 <div class="batch-cases">
             {% endif %}
-        <table>{% for case in batch.cases %}
+        <table id="testcases-table">
+            {% if submission.is_graded %}
+            {% if submission.result != 'AB' %}
+            <thead>
+                
+            <tr id="overall-row" class="case-row  overall-result-{{submission.result}}">
+                
+                <td><span class="col-title">{{_('Overall: ')}}</span>
+                {% if request.in_contest and submission.contest_or_none %}
+                    {% with contest=submission.contest_or_none %}
+                        ({{ _('%(points)s/%(total)s points', points=contest.points|roundfloat(3),
+                              total=contest.problem.points|floatformat(-1)) }})
+                    {% endwith %}
+                {% else %}
+                    {{ _('%(points)s/%(total)s', points=submission.points|roundfloat(3),
+                          total=submission.problem.points|floatformat(-1)) }}
+                {% endif %}
+                </td>
+                
+                <td><span class="case-{{submission.result}}">{{submission.long_status}}</span></td>
+                
+                <td><span class="col-title">{{_('Point: ')}}</span> 
+                    {{ submission.case_points|floatformat(0) }}/{{ submission.case_total|floatformat(0) }}
+                    
+                </td>
+                
+                <td><span class="col-title">{{_('Time: ')}}</span> 
+                {% if submission.result == "TLE" %}
+                    <span>---</span>
+                {% else %}
+                    <span title="{{ submission.time }}s">{{ (submission.time * 1000)|floatformat(0) }} ms</span>
+                {% endif %}
+
+                </td>
+                
+                <td><span class="col-title">{{_('Memory: ')}}</span>{{ submission.memory|kbdetailformat }}</td>
+            </tr>
+            </thead>
+            {% endif %}
+            {% endif %}
+
+            {% for case in batch.cases %}
             <tr id="{{ case.id }}" class="case-row toggle closed">
                 <td>
                     {%- if ((prefix_length is none or prefix_length > 0) or (request.user.is_superuser)) -%}
@@ -50,26 +91,25 @@
 
                 <td>
                     <span title="{{ case.long_status }}" class="case-{{ case.status }}">
-                        {%- if case.status == 'SC' %}&mdash;{% else %}{{ case.status }}{% endif -%}
+                        {%- if case.status == 'SC' %}&mdash;{% else %}{{ case.long_status }}{% endif -%}
                     </span>
-                    {%- if case.feedback %}&nbsp;({{ case.feedback }}){% endif -%}
                 </td>
 
+                {% if not batch.id %}
+                    <td><span class="col-title">{{_('Point')}}: </span> {{ case.points|floatformat(0) }}/{{ case.total|floatformat(0) }}</td>
+                {% endif %}
+
                 <td>
                     {%- if case.status != 'SC' -%}
                         {%- if case.status == 'TLE' -%}
-                            [&gt;<span>{{ time_limit|floatformat(3) }}s,</span>
+                            <span><span class="col-title">{{_('Time')}}: &gt;</span>{{ (time_limit * 1000)|floatformat(0) }} ms</span>
                         {%- else -%}
-                            [<span title="{{ case.time }}s">{{ case.time|floatformat(3) }}s,</span>
+                            <span title="{{ case.time }}s"><span class="col-title">{{_('Time')}}: </span>{{ (case.time * 1000)|floatformat(0) }} ms</span>
                         {%- endif -%}
                     {%- endif -%}
                 </td>
 
-                <td>{% if case.status != 'SC' %}{{ case.memory|kbdetailformat }}]{% endif %}</td>
-
-                {% if not batch.id %}
-                    <td>({{ case.points|floatformat(0) }}/{{ case.total|floatformat(0) }})</td>
-                {% endif %}
+                <td>{% if case.status != 'SC' %}<span class="col-title">{{_('Memory')}}: </span> {{ case.memory|kbdetailformat }}{% endif %}</td>
             </tr>
 
             {% if ((prefix_length is none or prefix_length > 0) or (request.user.is_superuser)) %}
@@ -77,22 +117,30 @@
                     <td colspan="5">
                         <div class="case-info">
                             {% set curr_data = cases_data[case.case] %}
+                            {% if curr_data != null %}
                             <strong>{{ _('Input:') }}</strong>
                             <pre class="case-output">{{ curr_data['input']|linebreaksbr }}</pre>
-                            <strong>{{ _('Your output:') }}</strong>
+                            {% endif %}
+                            
+                            <strong>{{ _('Output:') }}</strong>
                             <pre class="case-output">{{ case.output|linebreaksbr }}</pre>
+
+                            {% if curr_data != null %}
                             <strong>{{ _('Answer:') }}</strong>
                             <pre class="case-output">{{ curr_data['answer']|linebreaksbr }}</pre>
+                            {% endif %}
+
+                            {% if case.extended_feedback or case.feedback %}
+                            <strong>{{ _('Judge feedback:') }}</strong>
+                                {% if case.feedback %}
+                                <pre class="case-output">{{ case.feedback|linebreaksbr }}</pre>    
+                                {% endif %}
+                                {% if case.extended_feedback %}
+                                <pre class="case-output">{{ case.extended_feedback|linebreaksbr }}</pre>
+                                {% endif %}
+                            {% endif %}
                         </div>
                     </td>
-                    {% if case.extended_feedback %}
-                        <td colspan="5" class="case-ext-feedback">
-                            <div class="case-info">
-                                <strong>{{ _('Judge feedback') }}</strong>
-                                <pre class="case-output">{{ case.extended_feedback|linebreaksbr }}</pre>
-                            </div>
-                        </td>
-                    {% endif %}
                 </tr>
             {% endif %}
         {% endfor %}
@@ -104,29 +152,6 @@
         {% if submission.is_graded %}
             <br>
             {% if submission.result != "AB" %}
-                <b>{{ _('Resources:') }}</b>
-                {% if submission.result == "TLE" %}
-                    <span>---,</span>
-                {% else %}
-                    <span title="{{ submission.time }}s">{{ submission.time|floatformat(3) }}s,</span>
-                {% endif %}
-                {{ submission.memory|kbdetailformat }}
-                <br>
-                {% if is_pretest %}
-                    <b>{{ _('Final pretest score:') }}</b>
-                {% else %}
-                    <b>{{ _('Final score:') }}</b>
-                {% endif %}
-                {{ submission.case_points|floatformat(0) }}/{{ submission.case_total|floatformat(0) }}
-                {% if request.in_contest and submission.contest_or_none %}
-                    {% with contest=submission.contest_or_none %}
-                        ({{ _('%(points)s/%(total)s points', points=contest.points|roundfloat(3),
-                              total=contest.problem.points|floatformat(-1)) }})
-                    {% endwith %}
-                {% else %}
-                    ({{ _('%(points)s/%(total)s points', points=submission.points|roundfloat(3),
-                          total=submission.problem.points|floatformat(-1)) }})
-                {% endif %}
                 {% if is_pretest and submission.result == "AC" %}
                     <br>
                     <i>{{ _('Passing pretests does not guarantee a full score on system tests.') }}</i>
diff --git a/templates/submission/status.html b/templates/submission/status.html
index c8cc294..33689a2 100644
--- a/templates/submission/status.html
+++ b/templates/submission/status.html
@@ -72,7 +72,7 @@
     {% endif %}
 
     <br>
-    <hr class="half-hr">
+    <hr>
     <br>
 
     <div id="test-cases">{% include "submission/status-testcases.html" %}</div>
@@ -81,7 +81,7 @@
         {% if request.user == submission.user.user or perms.judge.abort_any_submission %}
             <div id="abort-button">
                 <br>
-                <hr class="half-hr">
+                <hr>
                 <br>
                 <form action="{{ url('submission_abort', submission.id) }}" method="post">
                     {% csrf_token %}
diff --git a/validator_template/template.py b/validator_template/template.py
new file mode 100644
index 0000000..9fa8da0
--- /dev/null
+++ b/validator_template/template.py
@@ -0,0 +1,50 @@
+import os
+import subprocess
+
+from dmoj.contrib import contrib_modules
+from dmoj.error import InternalError
+from dmoj.judgeenv import env, get_problem_root
+from dmoj.result import CheckerResult
+from dmoj.utils.helper_files import compile_with_auxiliary_files, mktemp
+from dmoj.utils.unicode import utf8text
+
+executor = None
+
+
+def get_executor(files, lang, compiler_time_limit, problem_id):
+    global executor
+
+    if executor is None:
+        if not isinstance(files, list):
+            files = [files]
+        filenames = [os.path.join(get_problem_root(problem_id), f) for f in files]
+        executor = compile_with_auxiliary_files(filenames, lang, compiler_time_limit)
+
+    return executor
+
+
+def check(process_output, judge_output, judge_input, 
+          problem_id={{problemid}},
+          files={{filecpp}},
+          lang='CPP14',
+          time_limit=10,
+          memory_limit=1024**2,
+          compiler_time_limit=10,
+          feedback=True, type='default',
+          point_value=None, **kwargs) -> CheckerResult:
+    executor = get_executor(files, lang, compiler_time_limit, problem_id)
+
+    if type not in contrib_modules:
+        raise InternalError('%s is not a valid return code parser' % type)
+
+    with mktemp(judge_input) as input_file, mktemp(process_output) as output_file, mktemp(judge_output) as judge_file:
+        process = executor.launch(input_file.name, output_file.name, judge_file.name, stdout=subprocess.PIPE,
+                                  stderr=subprocess.PIPE, memory=memory_limit, time=time_limit)
+
+        proc_output, error = map(utf8text, process.communicate())
+
+        return contrib_modules[type].ContribModule.parse_return_code(process, executor, point_value, time_limit,
+                                                                     memory_limit,
+                                                                     feedback=utf8text(proc_output)
+                                                                     if feedback else None, name='checker',
+                                                                     stderr=error)
\ No newline at end of file