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

mu 2 9 11
pwr 15 11 10
pwr 12 4 13
mu 10 13 14
mu 14 14 12

mu 11 12 13

mu 13 12 14

mu 13 14 15

pwr 4 15 16
iv 1 20
mu 20 16 21
mu 21 1 17

mu 10 17 22
mu 22 22 19
mu 1 19 20

iv 20 30
mu 30 10 31
mu 31 20 21

pwr 4 11 30
iv 30 31
mu 31 16 32
mu 32 30 22

mu 21 22 23
mu 23 23 24
mu 24 31 25

mu 20 25 1

mu 10 16 26
pwr 4 7 8
iv 8 9
mu 9 26 27
mu 27 8 28
mu 21 28 27
pwr 3 27 28
mu 28 9 29
mu 20 29 2