mu 1 2 3
mu 3 2 4
mu 3 4 5
mu 3 5 6
mu 5 6 7
mu 6 5 8
mu 7 8 5
mu 5 4 2
pwr 7 3 1
pwr 16 8 3
iv 3 4
mu 4 1 5
mu 5 3 1
pwr 18 7 3
iv 3 4
mu 4 2 5
mu 5 3 2

