s1qx r1qxde q1qxd p1qx o1qxde

3aqxde 2aqxd 1aqx 0aqxde zaqxd

ekpxd dkpx ckpxde bkpxd akpx

ptox otoxde ntoxd mtox ltoxde

02nxde z2nxd y2nx x2nxde w2nxd