cccc ccci ccee ccic ccii ccir ccix ccoc ccrc ccre ccri ccxi cec- cece ceci ceco ceec ceor cer- cerc cere ceri cero cexe cicc cici cico cicr ciee cier ciii cior circ cire ciri ciro cirr cixi coce coco coex coir coix cor- corc core cori coro corr coxe crcc crce crcr cre- crec cree crei creo crex cric crie croc croe croo cror cxii cxix cxro cxxi cxxx eccc ecce ecci ecco eco- ecrc ecri ecrr eeee eeoc eerc eero eico eiec eiei eier eire eoir eore eori er-x ercc erce erec erei erer eric erie erio eroc eroe eroi eroo errc erre erro exco exec exer exo- exor exrx iccc icci icco iccr icec icee icer icex icoc icor icrc icre icrr iecc ieie ieio iere ieri iiie iiii iiio iioi iioo iirc ioci ioee ioii ioio iooi iooo iore iori ircc ircx iree irer irex iri- iric irie irio irix iroc irrc irre irri ixxi o-eo occc occi oce ocee ocre ocro ocrr oec- oecc oeec oere oici oier oiii oire oocr ooer oooo oore orce orci orco ore- orec oreo orer orex ori- oric orie orio orix oro- oroe oror orri orro oxer oxi- oxic oxie oxo- oxox oxxo rccc rcic recc rece reci recr reii reir rere reri rero rexx ricc rice rico rier riex rire riri rixc rixe rixo rocc roce roco roer roio roir rooi roor roox rorc rore rori roro roxo rrrr xcii xcri xeer xer- xero xexe xico xiii xixi xoco xoro xoxo xxii xxix xxxi xxxo xxxx