8 0 -90 -10 0 -90 0 10 -90 -10 0 -135 0 10 -90 0 0 180 0 10 -90 10 0 135 0 0 -90 10 0 90 0 -10 -90 10 0 45 0 -10 -90 0 0 0 0 -10 -90 -10 0 -45 0