w2xbf x2xbfd y2xb z2xbf 02xbfd
ltybfd mtyb ntybf otybfd ptyb
akzb bkzbf ckzbfd dkzb ekzbf
za0bf 0a0bfd 1a0b 2a0bf 3a0bfd
o10bfd p10b q10bf r10bfd s10b