mu 1 2 3
mu 3 2 4
mu 3 4 5
mu 4 2 1
mu 5 5 2
mu 2 1 5
pwr 3 5 2
mu 3 3 5
mu 5 1 3
pwr 6 3 1
mu 4 4 3
mu 5 3 4
pwr 26 4 3
mu 5 3 6
iv 6 3
mu 1 6 7
mu 3 7 1
pwr 33 4 3
pwr 11 5 6
mu 3 6 7
iv 7 6
mu 2 7 4
mu 6 4 2