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