dyby[9], bady[8], bidy[8], bada[7], bida[7],
dyb[7], bad[6], dba[6], bid[6], aby[6], aha[5], bai[5], hai[5], idy[5],
by[5], ba[4], ha[4], bi[4], hi[4], ad[3], da[3], id[3], aa[2],
