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