mu 1 2 3
mu 3 2 4
mu 3 4 5
mu 3 5 6
mu 6 6 2
mu 6 2 1
pwr 4 5 4
iv 4 5
mu 5 1 6
mu 6 4 1
pwr 12 3 4
iv 4 5
mu 5 2 6
mu 6 4 2