Program:

1. group:
   9.00 – 9.25 = F3
   9.25 – 9.50 = E2
   9.50 – 10.15 = F5
2. group:
   9.00 – 9.25 = K9
   9.25 – 9.50 = F7
   9.50 – 10.15 = B3