-ene cccc cccf cccs cccu ccee ccfc ccff ccnc ccne ccnf ccns ccnu ccsf ccsn ccss ccuc ccus cec- cece cecs ceec cees cef- cefc cefn cen- cene cens cesc cese cess cfcf cfcn cfcs cfns cfse cfun cnes cnss cscc csce cscf cscs csec csee csfc csne csse csuf csus cucc cuce cucn cues cufc cuff cune cuss cusu eccc ecce ecef eces ecfc ecfs ecne ecsc ecse ecss ecsu ecus eecs eeee eees eefe eefn eens eese efen efes effs ence encs enee enes ennc enne enns ennu ense ensu enue enuf enus esce escs escu esee esen eses esfs esne esse essu esuf esus eufc euse fccf fces fcsc fece feen fees fefc fefe feff fene fenn fens fese fess feus ffcc ffee ffff ffss ffun fnuf fscc fsec fssc fssf fuc- fufc fuff fufu fune funf funs fusc fuse fuss fusu nccc nccf nccn nccs nccu ncec ncee ncef ncen nces ncfc ncfe ncnc ncsc ncse ncsf ncss ncue necc nece necs neef neen nees nefe neff nefs nene nens nenu nesc nese nesn ness neuc neue neuf neun neuu nfcu nfff nfsu nnes nnnn nnss nscc nscs nsec nsfc nsfs nssc nsse nssf nsss nuce nucs nucu nuee nuff nunc nune nunn nuns nuse nuss nusu sccc scce sccs scec scee scfc scfe scsc scsn scsu scun se-c se-e se-f se-n se-s se-u sec- secc sece secn secs secu seec seef seen sees seeu seff sene senn sens sesc sese sess sfcc sfcs sffc sfne sfss sfsu sncc sncf snee snes snfu snns snus sscc ssce sscs ssec ssee sses ssfc ssns sssc sssf ssss suc- succ sucs suee suen sues sueu suf- sufc suff sufs sufu sun- sune sunn suns sunu sus- suse suss susu suus uces ucsc ucsf ucsu uesn uess ufcu uffe uncc unce uncf uncs unec unee unef unen unes unne unns uns- unsc unus uscc usce uscf uscs usee usef usen uses usfc usfs usnc usnu ussc usse ussf usss ussu usun usus uuen uuuu