0 0 0 a 1/2 1/2 1/2 a 1/2 0 0 b 0 1/2 1/2 b 0 0 1/2 c 1/2 1/2 0 c 0 1/2 0 d 1/2 0 1/2 d 1/4 1/4 1/4 e 3/4 3/4 1/4 e 3/4 1/4 3/4 e 1/4 3/4 3/4 e 3/4 3/4 3/4 f 1/4 1/4 3/4 f 1/4 3/4 1/4 f 3/4 1/4 1/4 f x 0 0 g -x 0 0 g -x+1/2 1/2 1/2 g x+1/2 1/2 1/2 g x 0 1/2 h -x 0 1/2 h -x+1/2 1/2 0 h x+1/2 1/2 0 h 0 y 0 i 0 -y 0 i 1/2 -y+1/2 1/2 i 1/2 y+1/2 1/2 i 1/2 y 0 j 1/2 -y 0 j 0 -y+1/2 1/2 j 0 y+1/2 1/2 j 0 0 z k 0 0 -z k 1/2 1/2 -z+1/2 k 1/2 1/2 z+1/2 k 0 1/2 z l 0 1/2 -z l 1/2 0 -z+1/2 l 1/2 0 z+1/2 l x y z m -x -y z m -x y -z m x -y -z m -x+1/2 -y+1/2 -z+1/2 m x+1/2 y+1/2 -z+1/2 m x+1/2 -y+1/2 z+1/2 m -x+1/2 y+1/2 z+1/2 m