mu 1 2 11A
mu 11A 2 19ABC
mu 11A 19ABC 20AB
mu 20AB 2 12A
mu 11A 20AB 3
mu 3 19ABC 31AB
mu 12A 3 28AB
mu 3 28AB 16AB
mu 19ABC 16AB 16CD
mu 12A 16CD 7B
mu 7B 28AB 15AB
oup 10 7B 11A 12A 15AB 16AB 16CD 19ABC 20AB 28AB 31AB
echo "Classes 7B 11A 12A 15A-B 16A-B 16C-D 19A-C 20A-B 28A-B 31A-B"

