34:00 0
teacher
34:00 
42:00 1
27:00 4
32:00 2
19:00 2
36:00 1
22:00 0
27:00 0
06:00
0
34:00 42:00 27:00 32:00 19:00 36:00 22:00 27:00 
34:00 42:00 27:00 32:00 19:00 36:00 22:00 27:00 
