inp 2
mu 2 1 3
mu 1 3 4
pwr 2 2 5
mu 5 1 6
mu 4 6 7
iv 2 8
mu 1 2 9
mu 8 9 10
mu 6 10 11
mu 7 11 12
mu 1 5 13
pwr 2 13 14
mu 8 1 15
mu 1 15 16
mu 3 5 17
mu 16 17 18
mu 14 18 19
mu 12 19 20
mu 13 16 21
mu 17 13 22
mu 21 22 23
mu 1 8 24
mu 13 24 25
mu 18 25 26
mu 23 26 27
mu 20 27 28
oup 1 28
