bufce[14], bufie[13], fecie[10], bucie[10], ubiec[10], becie[8],
cifu[11], efeb[10], buce[9], efie[8], bece[7], biec[7], ucie[7], ecie[5],
buf[11], fiu[9], cif[8], buc[8], fee[7], ecu[6], bee[5], cie[4],
fu[8], uf[8], ef[6], fe[6], fi[6], bu[6], be[4], bi[4], ce[3], ci[3], ee[2],