mu 1 2 3
mu 3 2 4
mu 3 4 5
mu 4 5 6
mu 6 5 7
mu 7 7 8
mu 6 8 9
mu 5 9 10
mu 6 6 7
mu 7 7 8
mu 8 10 9
mu 9 9 2
mu 3 5 6
mu 6 3 7
pwr 3 5 8
pwr 22 7 9
mu 8 9 10
iv 10 9
mu 9 2 3
mu 3 10 2