cccc cccf ccci cccp ccee ccfc ccff ccfi ccic ccii ccip ccir ccoc ccpe ccpp ccpr ccrc ccre ccrf ccri ccrp cec- cece ceci ceco cecp ceec cef- cefc ceip ceop ceor cepc cepe cepo cepp cepr cer- cerc cere cerf ceri cero cerp cfcf cfco cffr cfor cfpo cfpr cfre cfrp cicc cici cico cicr ciee cier cife ciff ciii cior cipf cipo cipp circ cire ciri ciro cirr coce coco cocp coep cofc cofe coff cofi coif coip coir coof coop cope copi copo copp copr cor- corc core corf cori coro corp corr cpce cpep cper cpff cpic cpif cpio cpre cpri crcc crce crcr cre- crec cree crei creo crep crfc cric crie crif crip croc croe croo crop cror crpc eccc ecce ecci ecco ecef ecfc ecfr ecip eco- ecop ecpp ecrc ecrf ecri ecrr eeee eefe eeoc eerc eero efco efeo effi efic efor eico eiec eiei eier eipo eipr eire eoir eore eori epcc epci epec epee eper epfc epi- epic epie epip epoc epor eppc eppo eppp epro eprp ercc erce ercp erec erei erer erfc eric erie erio eroc eroe eroi eroo erpe errc erre erro fccf fccp fcic fcii fece feer fefc fefe feff fefi fefo feie feio feir feof fepc ferc fere fero ferr ffcc ffee ffff ffii ffrr ficc fice fico fiec fief fier fifc fife fiff fifi fifo fiii fioe fior fipp fire foce foci foco foer fofo foie foof fopp for- fore fori foro forr fp-c fpcc fprf frcc frcp free frei freo frep frfc fric frie frio frip froe frop iccc iccf icci icco iccp iccr icec icee icef icer icoc icor icpc icpo icrc icre icrf icrr iecc ieie ieio iere ieri ifco ifcp ifer ific ifor ifpo ifrf ifri iiie iiii iiio iioi iioo iiop iipf iirc ioci iocp ioee iofc ioii ioio ioof iooi iooo iore iori ipcc ipce ipec iper ipfc ipie ipoe ipop ippc ippf ippo ippr ipri ircc iree irer irfe iri- iric irie irio irip iroc irop irpc irpe irrc irre irri o-eo occc occi oce ocee ocef ocfp ocpp ocre ocro ocrr oec- oecc oeec oere ofcr ofer off- offc offe offo offr ofor ofre oici oier oiii oipc oire oocr ooer ooff oooo oore opec opei opep oper opic opie opii opio opo- opor oppi oppo orce orci orco ore- orec oreo orer orfe orff orfi ori- oric orie orif orio oro- oroe orof oror orpc orpe orpi orri orro pccc pcce pcep pcer pcfc pcip pcoe pcpp pcrc pcre pcrf pece peci peco pecr peec peep peer pefc peff peio peip peir peor pepe pepi pepo per- perc pere perf peri pero perp perr pfce pfff pffr pfic picc pice pici pico picr piep pier piff piip pipe pipi pipo pipp pirc pire piri piro pirr poce poco poer poff pofi poio poof poop poor pop- popc pope popi popo popp porc pore pori poro porr ppcc ppci pper ppic ppie ppif pppo pppp pprc pprf prcc prcf prcp pre- prec pree pref prep prfc pri- prie prif prii pro- proc proe prof proo prop prri rccc rcep rcfc rcic rcpi rcpo recc rece reci recp recr reef reep refe reff refi refr reif reii reir reof reop repe repi repo repp repr rere reri rero rfef rffc rfic ricc rice rico rief riep rier rife riff riif ripe ripi ripp ripr rire riri rocc roce roco roer rofc rofe roff rofo roif roio roir roof rooi roop roor rope ropo rorc rore rori roro rpfc rpii rpoe rpof rrfc rrif rrrr