bece[7], bele[7], becz[7], cele[6], elce[6], beze[6], lecz[6], zlec[6], zele[5],
bel[6], ble[6], bee[5], cel[5], cle[5], lec[5], bez[5], lee[4], cez[4], cze[4],
be[4], ce[3], el[3], ee[2], ez[2], ze[2],
