bacy[8], caby[8], bady[8], cyga[8], dyga[8], gady[8],
dyb[7], cyg[7], dyg[7], gdy[7], cab[6], bad[6], dba[6], dag[6], gad[6], aby[6], gay[6],
by[5], ba[4], ag[4], ad[3], da[3],
