bufo[12], fobu[12], cifu[11], cuci[8], uboi[8],
buf[11], fob[9], fiu[9], ufo[9], cif[8], buc[8], obu[7], cob[6], boi[5], obi[5],
fu[8], uf[8], fi[6], bu[6], bi[4], bo[4], ci[3], co[3],
