P 1 x2

P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2
P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2
P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2P 1 x2