bufy[13], efeb[10], wuef[10], webu[8], weby[7],
buf[11], efy[8], fee[7], bee[5], web[5], ewy[4], ewe[3],
fu[8], uf[8], ef[6], fe[6], bu[6], by[5], be[4], wu[4], wy[3], ee[2], ew[2], we[2],
