mu 1 2 3
mu 3 2 4
mu 4 2 5
mu 1 1 6
mu 4 4 7
mu 3 7 8
mu 5 7 9
mu 8 2 10
echo "Classes 1A 2A 3A 4A 5A 6A 8A 8B 11A 11B"
oup 10 6 1 7 2 10 4 8 9 3 5