v 0.0 0.0 0.0
v 0.0 1.0 0.0
v 1.0 1.0 0.0
v 1.0 1.0 0.0
v 1.0 0.0 0.0
v 1.0 1.0 1.0
v 1.0 0.0 1.0
v 0.0 1.0 1.0
v 0.0 0.0 1.0
# south
f 1 2 3
f 1 4 5
# east
f 5 4 6
f 5 6 7
# north
f 7 6 8
f 7 8 9
# west
f 9 8 2
f 9 2 1
# top
f 2 8 6
f 2 6 4
# bottom
f 7 9 1
f 7 1 5