02rvxr 12rv 22rvx 32rvxr 42rv

ptsv qtsvx rtsvxr stsv ttsvx

ektvx fktvxr gktv hktvx iktvxr

3auvxr 4auv 5auvx 6auvxr 7auv

s1uv t1uvx u1uvxr v1uv w1uvx