inp 2
iv 1 3
mu 3 2 4
iv 2 5
mu 3 5 6
mu 4 6 7
mu 2 3 8
mu 3 8 9
mu 6 9 10
mu 7 10 11
mu 5 3 12
pwr 2 12 13
mu 2 6 14
mu 8 14 15
mu 13 15 16
mu 11 16 17
mu 1 2 18
mu 1 5 19
mu 18 19 20
mu 2 1 21
mu 1 21 22
mu 19 22 23
mu 20 23 24
mu 5 1 25
mu 21 25 26
mu 2 19 27
mu 21 27 28
mu 26 28 29
mu 24 29 30
mu 17 30 31
mu 1 2 3
mu 2 1 4
mu 1 4 5
mu 3 5 6
mu 2 3 7
mu 7 5 8
mu 6 8 9
iv 2 10
mu 1 10 11
mu 2 11 12
mu 10 1 13
mu 1 13 14
mu 12 14 15
mu 10 11 16
mu 16 5 17
mu 15 17 18
mu 9 18 19
mu 4 7 20
mu 14 7 21
mu 20 21 22
mu 5 16 23
mu 14 16 24
mu 23 24 25
mu 22 25 26
mu 19 26 27
oup 2 31 27
