cccc ccci cccp ccee ccic ccii ccip ccir ccix ccpe ccpp ccpr ccrc ccre ccri ccrp ccxi cec- cece ceci cecp ceec ceip cepc cepe cepp cepr cer- cerc cere ceri cerp cery cexe ceyx cicc cici cicr ciee cier ciii cipp circ cire ciri cirr cixi cpce cpep cper cpic cpix cpre cpri crcc crce crcr cre- crec cree crei crep crex cric crie crip crpc cry- cxii cxix cxxi cxxx cyc- cycc cypc cyre cyy- cyyc eccc ecce ecci ecip ecpp ecrc ecri ecrr eeee eerc eery eiec eiei eier eipr eire eiry epcc epci epec epee eper epi- epic epie epip epix eppc eppp eppy eprp epxp epyx er-x ercc erce ercp erec erei erer eric erie erpe errc erre eryc erye eryx exec exer expr exrx exxy eyec eyer eyey eyir eype eypx eyre eyry eyyr iccc icci iccp iccr icec icee icer icex icey icpc icrc icre icrr icry iecc ieie iere ieri iiie iiii iirc ipcc ipce ipec iper ipex ipie ipix ippc ippr ippy ipri ipxe ircc ircx iree irer irex iri- iric irie irip irix iriy irpc irpe irrc irre irri ixxi iyer iyre pccc pcce pcep pcer pcip pcpp pcrc pcre pece peci pecr pecy peec peep peer peip peir pepe pepi per- perc pere peri perp perr pery peyr picc pice pici picr picy piep pier piip pipe pipi pipp pipy pirc pire piri pirr piry pixx pixy piye ppcc ppci pper ppic ppie pppp pprc ppye prcc prcp pre- prec pree prep prex prey pri- prie prii prix prri pyce pyep pyic pype pypy pyr- pyre pyri pyry rccc rcep rcic rcpi rcyc recc rece reci recp recr recy reep reii reir repe repi repp repr repy rere reri rery rexx reye ricc rice riep rier riex ripe ripi ripp ripr rire riri rixc rixe rixy rpii rpix rpyc rrrr ryip rype xcii xcri xeer xer- xexe xiii xipe xixi xpcc xper xrep xxii xxix xxxi xxxx xxxy xyr- yccc ycee ycie yeep yeer yeie yeii yeir yepe yepp yere yeri yerr yery yeye yeyi yeyr yipe yire yirr ypcc ypir yyyy