-ene c-cd cccc cccs ccdc ccdn ccdr ccds cced ccee ccnc ccne ccnr ccns ccrc ccre ccrs ccsd ccsn ccss cd-e cd-r cdcs cddr cdec cder cdes cdnc cdre cdrs cdss cec- cece cecs cedd cede ceec cees cen- cend cene cens cer- cerc cerd cere cern cers cesc cese cesr cess cndd cnes cnrc cnrr cnss crcc crce crcr crdc cre- crec cred cree cren cres crne crns crss cscc cscd csce cscr cscs csdn csdr csec csee cser csne csrc csrd csrs cssd csse cssr dccc dccs dcds dcns dcsc dcss dddd ddes ddrc ddre ddss dec- decc decd dece decs dedd dede deed deen deer dees dene denn dens der- derc dere dern derr ders des- desc dese dess dnce dncs dner dnrc dnsc dred dree dren dres drrs dscc dscn dscr dscs dsdr dsrc dsrr dssc dssn eccc ecce ecdc eced eces ecne ecrc ecrr ecsc ecse ecss eddc edde edds ede- eden eder edes edns edrn edss eecs eede eeee eees eend eens eerc eers eese ence encs end- ende ends ened enee ener enes ennc enne enns enrs ense ercc erce erde erds erec ered eren erer eres erne erns errc erre errs erse esce escr escs esds esee esen eser eses esne esrd esse nccc nccn nccr nccs ncdc ncdn ncdr ncds ncec nced ncee ncen ncer nces ncnc ncnd ncrc ncre ncsc ncse ncss ndcc ndcs ndde nder ndrc ndre ndss necc nece necr necs nedc nedd nede neds need neen neer nees nend nene nens nerc nerd nere nerr ners nesc nese nesn nesr ness nnes nnnn nnss nrcs nrdc nrds nren nrrc nrrd nrsc nscc nscd nscs nsds nsec nser nsnr nsrc nsrd nssc nsse nssr nsss rccc rccs rcdc rcde rcds rcnr rcrd rcsc rcsd rcss rder recc recd rece recr recs redc redd rede redr reds reed reen rees rend rene renn rens rerd rere rers rese resn ress rncs rndc rnds rred rrrr rscc rscn rscs rsdd rsds rsee rsnn rsnr rsre sccc scce sccs scdc scds scec scee scer scnd scnr scr- scrc scre scrn scrs scsc scsd scsn scsr sdcc sddc sdds sder sdes sdrc sdrs sdsc sdss se-c se-d se-e se-n se-s sec- secc secd sece secn secr secs sede seds seec seed seen seer sees send sene senn senr sens serc serd sere sern serr sers sesc sese sess sncc sned snee sner snes snns snrs snsd srcc srde srec sres srnn srsd sscc ssce sscs ssdc ssdd ssec ssee sses ssns ssrc ssrs sssc ssss