45:29 0
student
45:29 
14:29 2
07:36
0
11:54
0
09:28 2
05:52 1
00:24 0
12:34
1
08:33 1
08:02 0
10:10 0
30:31 0
26:56 0
08:00 1
08:12 1
11:57
0
08:11 0
08:12 0
11:54 1
10:29 4