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
pwr 5 16 1
pwr 3 8 2
