cccc ccee ccgc ccoc ccrc ccre ccrg cec- cece ceco ceec cege cego ceor cer- cerc cere cero ceze cgcc cgcg cger cgro coce coco cogo cor- corc core corg coro corr coze cozz crcc crce crcr crcz cre- crec cree creg creo croc croe croo cror croz eccc ecce ecco eco- ecog ecrc ecrr eeee eeoc eerc eerg eero eeze egcc egcg egcr egec egee eger egge eggo ego- egor egoz egre eore ercc erce erec erer erez erg- ergg ergo eroc eroe eroo errc erre erro ezer ezgo ezzo gc-c gccc gcrg gece geer geez gege gegg gego geo- geog gere gero gezo gggg goce gocr goer gogo goog goor gore gorg goro gorr gorz goze gozo grcc grce grec gree greg grez 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 ooze orce orco ore- orec oreg oreo orer orge orgo oro- oroe oror oroz orro orzo ozee ozer ozge rccc rcgc rcrg recc rece recr recz rege rego regr reog rere rerg rero reze rocc roce roco roeg roer roge rogg rogo roog roor rooz rorc rore roro roze rozz rrrr z-ro zegg zego zerg zero zeze zoco zogg zogo zoo- zorc zore zorg zoro zozo zrce zrze zzzz