mu 1 2 3
mu 3 2 4
iv 3 7
mu 7 1 6
mu 6 3 1
mu 3 4 5
mu 3 5 6
mu 6 5 8
pwr 3 8 2
pwr 14 4 5
iv 5 4
mu 4 2 6
mu 6 5 2

