06:00
2
student
07:00
3
08:00
1
05:00
2
09:00
3
10:00
2
30:00
2
08:00
1
23:00
0
08:00
3
14:00
2
01:00
4
06:00
1
08:00
2
10:00
2
11:00
1
11:00
2
09:00
1
00:19
1
06:00
0