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