06:00
0
student
23:00
1
08:00
2
00:50
3
00:49
1
00:50
1
05:00
0
00:50
1
06:00
1
06:00
0
06:00
0
06:00
1
07:00
1
10:00
1
15:00
1
00:50
4
00:49
0
00:50
1
00:50
3
00:50
0