mu 1 2 3
mu 3 2 4
mu 3 4 5
mu 3 5 6
mu 6 3 7
mu 3 7 8
pwr 5 8 2
mu 7 4 8
mu 3 8 9
mu 9 4 10
mu 4 9 11
mu 11 3 12
mu 12 10 11
mu 10 12 13
pwr 29 13 8
pwr 23 11 6
mu 8 6 7
iv 7 6
mu 6 2 8
mu 8 7 2
mu 9 3 5
mu 10 4 6
mu 5 6 4
pwr 27 4 3
iv 3 4
mu 4 1 5
mu 5 3 1