cccc ccci cccp ccee ccic ccii ccip ccir ccoc ccpe ccpp ccpr ccrc ccre ccri ccrp cec- cece ceci ceco cecp ceec ceip ceop ceor cepc cepe cepo cepp cepr cer- cerc cere ceri cero cerp cicc cici cico cicr ciee cier ciii cior cipo cipp circ cire ciri ciro cirr coce coco cocp coep coip coir coop cope copi copo copp copr cor- corc core cori coro corp corr cpce cpep cper cpic cpio cpre cpri crcc crce crcr cre- crec cree crei creo crep cric crie crip croc croe croo crop cror crpc eccc ecce ecci ecco ecip eco- ecop ecpp ecrc ecri ecrr eeee eeoc eerc eero eico eiec eiei eier 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 eric erie erio eroc eroe eroi eroo erpe errc erre erro iccc icci icco iccp iccr icec icee icer icoc icor icpc icpo icrc icre icrr iecc ieie ieio iere ieri iiie iiii iiio iioi iioo iiop iirc ioci iocp ioee ioii ioio iooi iooo iore iori ipcc ipce ipec iper ipie ipoe ipop ippc ippo ippr ipri ircc iree irer iri- iric irie irio irip iroc irop irpc irpe irrc irre irri o-eo occc occi oce ocee ocpp ocre ocro ocrr oec- oecc oeec oere oici oier oiii oipc oire oocr ooer oooo oore opec opei opep oper opic opie opii opio opo- opor oppi oppo orce orci orco ore- orec oreo orer ori- oric orie orio oro- oroe oror orpc orpe orpi orri orro pccc pcce pcep pcer pcip pcoe pcpp pcrc pcre pece peci peco pecr peec peep peer peio peip peir peor pepe pepi pepo per- perc pere peri pero perp perr picc pice pici pico picr piep pier piip pipe pipi pipo pipp pirc pire piri piro pirr poce poco poer poio poop poor pop- popc pope popi popo popp porc pore pori poro porr ppcc ppci pper ppic ppie pppo pppp pprc prcc prcp pre- prec pree prep pri- prie prii pro- proc proe proo prop prri rccc rcep rcic rcpi rcpo recc rece reci recp recr reep reii reir reop repe repi repo repp repr rere reri rero ricc rice rico riep rier ripe ripi ripp ripr rire riri rocc roce roco roer roio roir rooi roop roor rope ropo rorc rore rori roro rpii rpoe rrrr