o2px1n p2px q2px1 r2px1n s2px

dtqx etqx1 ftqx1n gtqx htqx1

2jrx1 3jrx1n 4jrx 5jrx1 6jrx1n

rasx1n sasx tasx1 uasx1n vasx

g1sx h1sx1 i1sx1n j1sx k1sx1