foby[11], efeb[10], boya[7], boye[7],
fob[9], efy[8], efa[7], fee[7], efo[7], aby[6], boy[6], oby[6], bee[5], abo[5], boa[5], oba[5],
fa[6], ef[6], fe[6], by[5], ba[4], be[4], bo[4], ee[2], eo[2],
