ANTI-SPIRAL : A, E
_ A _ _ / _ _ E _ / _ _ _ A _ / _ E A _ / _ A _ _ E A _ / E _ _ / _ _ / _ / _ _ / _ E _ / _ _ _ _ A _ _ _ _ _ _ E _ ?
SPIRAL : A, R
A / _ A / _ _ _ _ / _ _ / _ _ _ _ _ _ / _ _ _ R _ _ R _ _ _ / _ _ _ _ / _ A _ _ _ / A / _ / _ _ / _ _ A _ _ _ / _ A / _ _ R _ _ _ _ ?
Spirals 