bufo[12], fobu[12], efeb[10], foce[9], buce[9], bece[7], obce[7],
buf[11], fob[9], ufo[9], buc[8], fee[7], efo[7], obu[7], cob[6], ecu[6], bee[5],
fu[8], uf[8], ef[6], fe[6], bu[6], be[4], bo[4], ce[3], co[3], ee[2], eo[2],
