-ene c-cd cccc cccf cccm ccdc ccdf ccdm ccdn cced ccee ccfc ccfd ccff ccmc ccmd ccmm ccnc ccne ccnf ccnm cd-e cdec cdef cdfe cdmf cdnc cdnf cec- cece cecm cedd cede ceec ceem cef- cefc cefn ceme cemm cen- cend cene cfcf cfcm cfcn cfnm cmcc cmec cmmc cmmn cndd dccc dcfc dddd dec- decc decd dece dedd dede deed deef deem deen defe deff defn dem- demd deme demn dene denn dfcc dmcc dmcm dmdc dnce eccc ecce eccm ecdc ecdf eced ecef ecem ecfc ecne eddc edde eddm ede- edem eden edme eede eeee eefe eefn eend efen efmd emcc emcf emcn emen emme emne ence end- ende ened enee enem ennc enne fccf fdnm fece fede fedn feed feem feen fefc fefe feff feme femm fend fene fenn ffcc ffee ffff fndd fndn mccc mccd mcdc mcdd mcde mced mcef mcfc mcfd mcmc mdcc mddm mdef mden mdmc mdme mdmf mec- mecc mecd mece medd mede meed meef meem meen mefe meff memc meme men- menc mend mene menn mfcc mmcc mmcd mmcm mmdc mmdf mmen mmfd mmff mmmc mmmd mmmm mnem nccc nccf nccn ncdc ncdn ncec nced ncee ncef ncem ncen ncfc ncfe ncmm ncnc ncnd ndcc ndde ndmc necc nece nedc nedd nede need neef neem neen nefd nefe neff nefm nem- neme nemn nend nene nfdc nfff nm-e nmdc nmff nmmc nnmc nnnn