1,1,08:00-08:50 2,2,09:00-09:50 3,3,10:10-11:00 4,4,11:10-12:00 5,n,12:10-13:00 6,5,13:20-14:10 7,6,14:20-15:10 8,7,15:30-16:20 9,8,16:30-17:20 10,9,17:30-18:20 12,b,19:30-20:20 13,c,20:30-21:20 11,a,18:30-19:20
1,1,08:00-08:50 2,2,09:00-09:50 3,3,10:10-11:00 4,4,11:10-12:00 5,n,12:10-13:00 6,5,13:20-14:10 7,6,14:20-15:10 8,7,15:30-16:20 9,8,16:30-17:20 10,9,17:30-18:20 12,b,19:30-20:20 13,c,20:30-21:20 11,a,18:30-19:20