mu 1 2 3
mu 3 2 4
mu 3 4 5
mu 3 5 6
mu 6 3 7
mu 7 4 8
pwr 3 8 2
mu 5 7 3
pwr 31 3 5
iv 5 3
mu 3 1 8
mu 8 5 1
mu 4 6 3
pwr 13 3 4
iv 4 3
mu 4 2 8
mu 8 3 2

