bufo[12], fobu[12], foso[8], sofo[8], obco[7], boso[6],
buf[11], fob[9], ufo[9], fus[9], buc[8], fos[7], sof[7], obu[7], bus[7], cob[6], sou[5], soc[4], oso[3],
fu[8], uf[8], bu[6], bo[4], su[4], co[3], os[2],
