mu 1 2 11A
mu 11A 2 3
mu 11A 3 6B
mu 11A 6B 6A
mu 11A 6A 4
mu 4 3 10A
mu 10A 6B 8B
mu 4 6B 5
mu 5 3 8A
oup 6 6A 6B 8A 8B 10A 11A
echo "Classes 6A 6B 8A 8B 10A 11A"