-ene cccc cccf cccs ccee ccfc ccff ccnc ccne ccnf ccns ccsf ccsn ccss cec- cece cecs ceec cees cef- cefc cefn cen- cene cens cesc cese cess cfcf cfcn cfcs cfns cfse cnes cnss cscc csce cscf cscs csec csee csfc csne csse eccc ecce ecef eces ecfc ecfs ecne ecsc ecse ecss eecs eeee eees eefe eefn eens eese efen efes effs ence encs enee enes ennc enne enns ense esce escs esee esen eses esfs esne esse fccf fces fcsc fece feen fees fefc fefe feff fene fenn fens fese fess ffcc ffee ffff ffss fscc fsec fssc fssf nccc nccf nccn nccs ncec ncee ncef ncen nces ncfc ncfe ncnc ncsc ncse ncsf ncss necc nece necs neef neen nees nefe neff nefs nene nens nesc nese nesn ness nfff nnes nnnn nnss nscc nscs nsec nsfc nsfs nssc nsse nssf nsss sccc scce sccs scec scee scfc scfe scsc scsn se-c se-e se-f se-n se-s sec- secc sece secn secs seec seef seen sees seff sene senn sens sesc sese sess sfcc sfcs sffc sfne sfss sncc sncf snee snes snns sscc ssce sscs ssec ssee sses ssfc ssns sssc sssf ssss