cccc ccee ccgc ccoc ccrc ccre ccrg cec- cece ceco ceec cege cego ceor cer- cerc cere cero cgcc cgcg cger cgro coce coco cogo cor- corc core corg coro corr crcc crce crcr cre- crec cree creg creo croc croe croo cror eccc ecce ecco eco- ecog ecrc ecrr eeee eeoc eerc eerg eero egcc egcg egcr egec egee eger egge eggo ego- egor egre eore ercc erce erec erer erg- ergg ergo eroc eroe eroo errc erre erro gc-c gccc gcrg gece geer gege gegg gego geo- geog gere gero gggg goce gocr goer gogo goog goor gore gorg goro gorr grcc grce grec gree greg groc grog groo gror grrr o-eo occc oce ocee ocre ocro ocrr oec- oecc oeec oere ogee oger ogge ogog ogre ogro oocr ooer oooo oore orce orco ore- orec oreg oreo orer orge orgo oro- oroe oror orro rccc rcgc rcrg recc rece recr rege rego regr reog rere rerg rero rocc roce roco roeg roer roge rogg rogo roog roor rorc rore roro rrrr