21:00
0
teacher
06:00 0
05:05 0
02:05:00
3
24:00
1
21:00
1
10:00
1
12:00
1
11:00
0
13:09 2
07:52 0
08:08 1
03:20 0
05:10 2
07:36
0
20:28
0
08:11
1
10:00
2
08:00
0
07:32 4
12:00 10
44:26 0
08:27
1
08:00
0
12:00
0
07:00
0
11:00
7
19:00
5
19:00
2
23:00
4
03:00
3
