mu 1 2 3
mu 3 2 4
mu 3 4 5
mu 3 5 6
mu 6 5 8
mu 3 8 9
mu 9 4 10
mu 10 4 11
mu 3 11 12
mu 12 5 14
mu 14 4 15
mu 5 15 16
mu 16 5 17
pwr 10 6 1
mu 8 17 3
pwr 4 3 4
iv 4 3
mu 4 1 5
mu 5 3 1
mu 17 8 3
pwr 14 3 4
iv 4 3
mu 4 2 5
mu 5 3 2