cccc ccci cccp ccee ccgc ccic ccii ccip ccir ccoc ccpe ccpp ccpr ccrc ccre ccrg ccri ccrp cec- cece ceci ceco cecp ceec cege cego ceip ceop ceor cepc cepe cepo cepp cepr cer- cerc cere ceri cero cerp cgcc cgcg cger cgro cicc cici cico cicr ciee cier cigi ciii cior cipo cipp circ cire ciri ciro cirr coce coco cocp coep cogi cogo coip coir coop cope copg copi copo copp copr cor- corc core corg cori coro corp corr cpce cpep cper cpic cpio cpre cpri crcc crce crcr cre- crec cree creg crei creo crep cric crie crig crip croc croe croo crop cror crpc eccc ecce ecci ecco ecig ecip eco- ecog ecop ecpg ecpp ecrc ecri ecrr eeee eeoc eerc eerg eero egcc egcg egcr egec egee eger egge eggi eggo eggp egir ego- egoi egor egpe egpi egpo egre egri eico eiec eiei eier eige eigg eipo eipr eire eoir eore eori epcc epci epec epee eper epi- epic epie epip epoc epor eppc eppo eppp epro eprp ercc erce ercp erec erei erer erg- ergg ergi ergo eric erie erio eroc eroe eroi eroo erpe errc erre erro gc-c gccc gcic gcii gcpc gcrg gece geep geer gege gegg gego geic geie geig geir geo- geog gepe gere geri gero gggg ggpo gicr gier gige gigg gigi gigo giog gioi giop gipe gipi gipp gire girg giri giro girr goce gocr goer gogi gogo goip goog gooi goop goor gopc gope gopi gopo gore gorg gori goro gorp gorr gper gpgp gpip gprp grcc grce grec gree greg grep gric grie grig grip groc grog groi groo grop gror grpc grrr i-go iccc icci icco iccp iccr icec icee icer icgc icoc icor icpc icpo icrc icre icrr iecc ieie ieio iere ieri igcc igcp iger igoe igoo igor igri iiie iiii iiio iioi iioo iiop iirc iocg ioci iocp ioee ioii ioio iooi iooo iore iorg iori ipcc ipce ipec iper ipie ipoe ipop ippc ippo ippr ipri ircc ircg iree irer iri- iric irie irig irio irip iroc irop irpc irpe irrc irre irri o-eo occc occi oce ocee ocpp ocre ocro ocrr oec- oecc oeec oere ogee oger ogge oggi ogog ogoi ogre ogri ogro oici oier oigo oiii oipc oire oocr ooer oooo oore opec opei opep oper opic opie opii opio opo- opor oppi oppo orce orci orco ore- orec oreg oreo orer orge orgo ori- oric orie orig orio oro- oroe oror orpc orpe orpi orri orro pccc pcce pcep pcer pcgg pcip pcoe pcpp pcrc pcre pece peci peco pecr peec peep peer pegg pego peio peip peir peor pepe pepi pepo per- perc pere perg peri pero perp perr pgcc pgce pger pgrc picc pice pici pico picr piep pier pigc pigg pigo pigp piip pipe pipi pipo pipp pirc pire pirg piri piro pirr poce poco poer poge pogg pogo poio poop poor pop- popc pope popi popo popp porc pore porg pori poro porr ppcc ppci pper ppgi ppic ppie ppig pppo pppp pprc prcc prcp pre- prec pree preg prep pri- prie prig prii pro- proc proe prog proo prop prri rccc rcep rcgc rcic rcpi rcpo rcrg recc rece reci recp recr reep rege regi rego regr reii reir reog reop repe repi repo repp repr rere rerg reri rero ricc rice rico riep rier rige rigg rigi rigo ripe ripi ripp ripr rire riri rocc roce roco roeg roer roge rogg rogi rogo roig roio roir roog rooi roop roor rope ropo rorc rore rori roro rpii rpoe rrrr