yzxr zzxr2 0zxr2t 1zxr 2zxr2
nqyr2 oqyr2t pqyr qqyr2 rqyr2t
chzr2t dhzr ehzr2 fhzr2t ghzr
17zr 27zr2 37zr2t 47zr 57zr2
qy0r2 ry0r2t sy0r ty0r2 uy0r2t