cccc cccf ccci cccm ccee ccfc ccff ccfi ccic ccii ccim ccix ccmc ccmm ccxi cec- cece ceci cecm ceec ceem cef- cefc ceim ceme cemm cexe cfcf cfcm cfix cfmi cfmx cicc cici ciee cife ciff ciii cime cimi cimm cixi cmcc cmec cmii cmix cmmc cmmi cxii cxix cxxi cxxx eccc ecce ecci eccm ecef ecem ecfc ecim ecmi eeee eefe effi efic efmi eiec eiei eime eimi emcc emcf emex emic emii emim emix emme emmi exec exif exim fccf fcic fcii fcim fece feem fefc fefe feff fefi feie feme femi femm ffcc ffee ffff ffii ficc fice fiec fief fifc fife fiff fifi fifm fiii fime fixe fixx fmic fxcm iccc iccf icci icec icee icef icem icex icmc icme icmi icmm iecc ieie ieme ifex ific ifim ifmc iiie iiii iimc imci imec imfi imix imme immi ixxi mccc mcci mccx mcef mcfc mcic mcii mcix mcmc mcmi mcmx mcxc mcxi mec- mecc mece meef meem mefe meff mefi meic memc meme memx mexx mfcc micc mice mici miee miem mifc miff mifi miii mim- mime mimi mixe mixi mixx mmcc mmci mmcm mmcx mmff mmic mmii mmix mmmc mmmm mmxi mmxx mxii mxim mxxi x-fi xcii xefe xeme xexe xfce xiii xixi xmii xxii xxix xxxi xxxx