begu[10], bugi[10], gubi[10], begi[8], bieg[8], pieg[7],
bug[9], gub[9], pub[8], beg[7], big[7], gib[7], piu[6], gie[5], pie[4],
bu[6], gu[6], be[4], bi[4], pe[3], pi[3],
