refu[10], fezu[10], frez[8], rude[7], druz[7], durz[7], dedr[6], dred[6], zeru[6], drze[5], rdze[5],
fru[9], fur[9], ruf[9], ref[7], dud[7], fez[7], edu[6], ued[6], dur[6], rud[6], urd[6], uzd[6], der[4], red[4], zer[3],
fu[8], uf[8], ef[6], fe[6], ud[5], de[3], er[2], re[2], ez[2], ze[2],
