05:00
5
student
06:00
4
08:00
4
05:59
4
05:10
3
11:00
2
12:25
1
08:11 5
13:12 4
20:48 1
07:20 1
07:33 0
14:45
2
08:11
0
08:14
1
11:07
2
11:54
1
11:59
2
06:25
1
10:23
1
