P 180

P 180P 180P 180P 180
P 180P 180P 180P 180P 180P 180P 180P 180
P 180P 180P 180P 180P 180P 180P 180P 180P 180P 180P 180P 180
P 180P 180P 180P 180P 180P 180P 180P 180P 180P 180P 180P 180P 180P 180P 180P 180
P 180P 180P 180P 180P 180P 180P 180P 180