12rx 22rxy 32rxy7 42rx 52rxy

qtsxy rtsxy7 stsx ttsxy utsxy7

fktxy7 gktx hktxy iktxy7 jktx

4aux 5auxy 6auxy7 7aux 8auxy

t1uxy u1uxy7 v1ux w1uxy x1uxy7