efeb[10], efie[8], byki[8], beki[7], keki[6],
fik[8], efy[8], fee[7], byk[7], bek[6], bee[5], kek[5], kei[4], kie[4],
ef[6], fe[6], fi[6], by[5], be[4], bi[4], ki[3], ee[2],
