21:43
student
13:55
08:19
12:14
16:27
18:43
07:27
11:24
05:00
05:18 08:13
08:13
09:14
05:00
24:20
15:20
07:43
25:38
10:42
03:04
04:30
17:38
10:16 
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12:00 
15:00 
10:00 
08:00 
06:00 
40:00 
27:00 
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