mu 1 2 3
mu 3 2 4
mu 3 4 5
mu 3 5 6
mu 6 5 7
mu 7 5 8
mu 6 7 9
mu 6 9 10
mu 10 7 11
mu 1 11 12
mu 10 11 13
mu 3 13 14
mu 10 12 15
mu 13 14 16
oup 12 11 15 9 14 6 16 7 12 13 8 3 10
echo "Classes 8A 9AB 14AB 30AB 6C 8C 10B 12B 12C 20A 22B 24A"
#echo "are in 11 15 9 14 6 16 7 12 13 8 3 10"