-ene cccc cccs cccv ccee ccnc ccne ccns ccsn ccss ccvs cec- cece cecs ceec cees cen- cene cens cesc cese cess cnes cnss cscc csce cscs csec csee csne csse cvcc cven cvss eccc ecce eces ecne ecsc ecse ecss eecs eeee eees eens eese eevn en-v ence encs enee enes ennc enne enns ense ensv envs esce escs esee esen eses esne esse esvn even eves evsc nccc nccn nccs ncec ncee ncen nces ncnc ncsc ncse ncss ncvs necc nece necs neen nees neev nene nens nesc nese nesn ness neve nnes nnnn nnss nscc nscs nsec nssc nsse nsss nvcc nvcs nvss sccc scce sccs scec scee scsc scsn se-c se-e se-n se-s sec- secc sece secn secs secv seec seen sees sene senn sens sesc sese sess seve sncc snee snes snns sscc ssce sscs ssec ssee sses ssns sssc ssss svcc svce svcs svec sven svns svsc vecc veen vees ven- vene venn vesc vese vess veve vsee vsen vses vssc vsse vvvv