sleb rlebfm qlebf pleb olebfm
3udbfm 2udbf 1udb 0udbfm zudbf
e4cbf d4cb c4cbfm b4cbf a4cb
pdcb odcbfm ndcbf mdcb ldcbfm
0mbbfm zmbbf ymbb xmbbfm wmbbf