10:28 0
student
10:28 
25:39 0
23:22 2
34:53 6
03:01 1
07:12 2
17:00 0
25:00 3
05:36 2
10:14 1
06:05 0
08:30 2
03:53 2
14:55
1
42:24
2
06:44
1
07:53
2
08:41
1
07:54
4
12:04
3
