cudkix,kixcud,fiskux,kuxfis.
------------------------------------------
181757=386^2+181^2   cudkix(fuk,cud)
757181=866^2+85^2    kixcud(loj,buj)
353797=594^2+31^2    fiskux(hut,beq)
797353=168^2+877^2   kuxfis(com,lox)
------------------------------------------