mu 1 2 3
mu 3 2 4
mu 3 4 5
mu 1 3 6
mu 3 1 7

mu 2 2 1

pwr 3 6 9
mu 9 3 8
mu 8 9 6

mu 7 7 8
mu 3 3 9
mu 8 9 7

mu 6 7 10

pwr 9 5 6
mu 9 6 8

iv 8 9
mu 9 10 7
mu 7 8 2