1,M,07:30-08:20 2,1,08:30-09:20 3,2,09:30-10:20 4,3,10:30-11:20 5,4,11:30-12:20 6,N,12:30-13:20 7,5,13:30-14:20 8,6,14:30-15:20 9,7,15:30-16:20 10,8,16:30-17:20 11,9,17:30-18:20 12,10,18:30-19:20 13,11,19:30-20:20 14,12,20:30-21:20 15,13,21:30-22:20