v 0 0 0
v 1 0 0
v 1 1 0
v 0 1 0
f 1 2 3 4
v -1 -1 -1
v 2 -1 -1
v 2 2 -1
v -1 2 -1
f 5 6 7 8
l 1 5
l 2 6
l 3 7
l 4 8
v -2 -2 -2
v 3 -2 -2
v 3 3 -2
v -2 3 -2
f 9 10 11 12
l 5 9
l 6 10
l 7 11
l 8 12
v -1 -1 -3
v 2 -1 -3
v 2 2 -3
v -1 2 -3
f 13 14 15 16
l 9 13
l 10 14
l 11 15
l 12 16
v 0 0 -4
v 1 0 -4
v 1 1 -4
v 0 1 -4
f 17 18 19 20
l 13 17
l 14 18
l 15 19
l 16 20
v -1 -1 -5
v 2 -1 -5
v 2 2 -5
v -1 2 -5
f 21 22 23 24
l 17 21
l 18 22
l 19 23
l 20 24
v -1 -1 -8
v 2 -1 -8
v 2 2 -8
v -1 2 -8
f 25 26 27 28
l 21 25
l 22 26
l 23 27
l 24 28
v .5 .5 3
l 1 29
l 2 29
l 3 29
l 4 29
v -2 -2 -10
v 4 -2 -10
v 4 3.5 -10
v -2 3.5 -10
f 30 31 32 33
l 25 30
l 26 31
l 27 32
l 28 33
v -2 -2 -20
v 4 -2 -20
v 4 3.5 -20
v -2 3.5 -20
f 34 35 36 37
l 30 34
l 31 35
l 32 36
l 33 37