abba[8], baba[8], baca[7], caba[7], bace[7], scab[7], basa[6], saab[6], seba[6],
bab[7], cab[6], bas[5], ces[4], aaa[3], asa[3],
ba[4], be[4], ce[3], aa[2], as[2], es[2], se[2],
