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teacher
00:55
04:00
06:00
16:00
05:00
15:00
07:00
08:00
15:00
09:00
06:00
01:00
20:00
02:00
08:00
06:00
28:00
05:00
03:00
08:35
04:00
32:00
26:00
10:00
02:00
10:00
09:00
30:00
10:00