bufo[12], fobu[12], bodu[9], budo[9], sodu[7], osuw[6], owsu[6],
buf[11], fob[9], ufo[9], fus[9], bud[8], fos[7], sof[7], obu[7], bus[7], bod[6], duo[6], udo[6], dwu[6], sou[5], suw[5],
fu[8], uf[8], bu[6], ud[5], bo[4], su[4], wu[4], do[3], od[3], os[2],
