mu 1 2 3
mu 3 2 4
mu 3 4 5
mu 3 5 6
mu 1 6 7
mu 6 1 8
iv 8 9
mu 9 7 8
pwr 9 8 9
mu 7 9 2
mu 6 5 8
mu 3 8 9
mu 9 4 10
mu 1 10 7
mu 10 1 8
iv 8 9
mu 9 7 8
pwr 14 8 1