00:49
student
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15:00
10:00
12:00
00:50
10:00
11:00
35:00
00:50
00:50
10:00
05:00
12:00
12:00
10:00
12:00
20:00
11:00
10:00
10:00
10:00
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00:49
08:00
10:00
36:00
00:50
04:00