cccc cccf ccci cccp ccee ccfc ccff ccfi ccic ccii ccip ccir ccpe ccpp ccpr ccrc ccre ccrf ccri ccrp cec- cece ceci cecp ceec cef- cefc ceip cepc cepe cepp cepr cer- cerc cere cerf ceri cerp cery cfcf cfcy cffr cfpr cfre cfrp cfry cicc cici cicr ciee cier cife ciff ciii cipf cipp circ cire ciri cirr cpce cpep cper cpff cpic cpif cpre cpri crcc crce crcr cre- crec cree crei crep crfc cric crie crif crip crpc cry- cyc- cycc cyfe cyfi cypc cyre cyy- cyyc eccc ecce ecci ecef ecfc ecfr ecip ecpp ecrc ecrf ecri ecrr eeee eefe eerc eery effi effy efic eiec eiei eier eipr eire eiry epcc epci epec epee eper epfc epi- epic epie epip eppc eppp eppy eprp ercc erce ercp erec erei erer erfc eric erie erpe errc erre eryc erye eyec eyer eyey eyfi eyir eype eyre eyry eyyr fccf fccp fcic fcii fece feer fefc fefe feff fefi feie feir fepc ferc fere ferr fery feyr ffcc ffee ffff ffii ffrr ficc fice fiec fief fier fifc fife fiff fifi fiii fipp fire firy fp-c fpcc fprf frcc frcp free frei frep frey frfc fric frie frip frye fyce fyfe fyfi fyre fyry iccc iccf icci iccp iccr icec icee icef icer icey icpc icrc icre icrf icrr icry iecc ieie iere ieri ifcp ifer iffy ific ifrf ifri iiie iiii iipf iirc ipcc ipce ipec iper ipfc ipie ippc ippf ippr ippy ipri ircc iree irer irfe iri- iric irie irip iriy irpc irpe irrc irre irri iyer iyre pccc pcce pcep pcer pcfc pcip pcpp pcrc pcre pcrf pece peci pecr pecy peec peep peer pefc peff peip peir pepe pepi per- perc pere perf peri perp perr pery peyr pfce pfff pffr pfic picc pice pici picr picy piep pier piff piip pipe pipi pipp pipy pirc pire piri pirr piry piye ppcc ppci pper ppic ppie ppif pppp pprc pprf ppye prcc prcf prcp pre- prec pree pref prep prey prfc pri- prie prif prii prri pyce pyep pyic pype pypy pyr- pyre pyri pyry rccc rcep rcfc rcic rcpi rcyc recc rece reci recp recr recy reef reep refe reff refi refr reif reii reir repe repi repp repr repy rere reri rery reye rfef rffc rfic ricc rice rief riep rier rife riff riif ripe ripi ripp ripr rire riri riyf rpfc rpii rpyc rrfc rrif rrrr ryfe ryff ryif ryip rype ryyf yccc ycee ycie yeep yeer yefe yeff yeie yeii yeir yepe yepp yere yeri yerr yery yeye yeyi yeyr yiff yipe yire yirr ypcc ypir yyfe yyff yyyy