81y17 71y1 61y17m 51y17 41y1

jby1 iby17m hby17 gby1 fby17m

ukx17m tkx17 skx1 rkx17m qkx17

5tw17 4tw1 3tw17m 2tw17 1tw1

g3v1 f3v17m e3v17 d3v1 c3v17m