inp 2
mu 2 1 3
mu 2 3 4
mu 3 4 5
pwr 2 5 6
pwr 2 4 7
mu 6 7 8
mu 3 5 9
mu 9 4 10
mu 10 6 11
mu 11 3 12
mu 12 8 13
mu 13 7 14
mu 14 4 15
mu 15 8 16
pwr 23 16 17
oup 1 17
