baff[12], gaff[11], obig[8], biga[7], agio[6],
off[10], bob[8], gof[8], bog[7], gab[6], gib[6], abo[6], boa[6], bio[6], obi[6], abi[5], bai[5], goi[5],
fa[5], ob[5], ab[4], bi[4], go[4], ai[2],