02:00
1
student
12:00
1
10:00
0
16:00
2
10:00
0
10:00
1
12:00
0
10:00
0
12:00
11
13:00
0
13:00
4
22:00
1
01:30
0
06:00
1
13:00
4
12:00
0
00:45
0
06:00
1
19:00
11
00:48
2
12:00
0
06:00
2
07:00
7
23:00
5
10:00
12
01:34
0
00:30
2
00:31
0
09:00
13
11:00
5
15:00
0
07:00
32
14:00
0
08:00
0
18:00
8
13:00
12
00:50
4
23:00
7
15:00
4
15:00
0
10:00
14
26:00
0
10:00
0
33:00
0
12:00
4
16:00
0
41:00
18
11:00
0
27:00
3
08:00
0