33:00
1
teacher
05:00
0
12:00
0
00:48
2
05:00
0
01:34
0
06:00
16
11:00
1
15:00
2
15:00
105
00:41
0
13:00
12
12:00
13
01:26:00
0
11:00
0
05:00
4
12:00
1
08:00
0
06:00
2
18:00
0
11:00
2
10:00
0
10:00
2
14:00
25
15:00
4
06:00
2
10:00
4
01:29
1
06:00
0
05:00
1
07:00
4
06:00
32
05:00
2
02:00
4
06:00
7
15:00
1
15:00
3
01:18
3
07:00
69
41:00
6
12:00
183
11:00
691
03:00
13
26:00
193
08:00
77
17:00
35
07:00
50
06:00
10
12:00
45
07:00
8