(-250.0,250.0) (250.0,250.0)
(-250.0,-250.0) (250.0,-250.0)
(-250.0,250.0) (-250.0,-250.0)
(250.0,250.0) (250.0,-250.0)
(-150.0,0.0) (-50.0,0.0)
(0.0, -150.0) (0.0, -50.0)
(150.0,0.0) (50.0,0.0)
(0.0, 150.0) (0.0, 50.0)
