biga[7],
gab[6], bah[6], hab[6], gib[6], aba[5], bad[5], hag[5], abi[5], bai[5], aga[4], aha[4], hai[4], iah[4], dia[3],
ab[4], bi[4], ah[3], ha[3], hi[3], aa[2], ad[2], da[2], ai[2],