13:00
0
teacher
12:00
1
11:00
1
27:00
1
01:23
1
00:47
8
08:00
1
06:00
1
05:00
2
06:00
3
10:00
2
08:00
1
22:00
2
06:00
1
16:00
1
02:00
0
08:00
1
11:00 3
05:00
3
06:00
0