05:00 11
teacher
05:00 
12:00 4
19:00 8
11:00 0
06:00 3
36:00 1
30:00 4
31:00 5
21:00 0
14:00 7
08:00 2
20:00 4
12:00 1
20:00 0
28:00 2
08:00 3
41:00 1
12:00 4
15:00 0
33:00 1