c-cd cccc cccs ccdc ccdr ccds cced ccee ccrc ccre ccrs ccrt ccsd ccss ccst cctc cctt cd-e cd-r cdcs cddr cdec cder cdes cdre cdrs cdss cec- cece cecs cect cedd cede cedt ceec cees cer- cerc cerd cere cers cert cesc cese cesr cess cest cet- cete cets crcc crce crcr crdc cre- crec cred cree cres cret crrt crss crst crtc crts cscc cscd csce cscr cscs csdr csec csee cser cset csrc csrd csrs cssd csse cssr cstc cstd cstr csts ctec ctrc ctrs ctsc ctss ctts dccc dccs dcct dcds dcsc dcss dctc dcts dddd ddes ddrc ddre ddss ddts dec- decc decd dece decs dect dedd dede deed deer dees deet der- derc dere derr ders des- desc dese dess dest dete detr dets dred dree dres dret drrs dscc dscr dscs dsdr dsrc dsrr dssc dsst dstc dsts dtcc dted dtss eccc ecce ecct ecdc eced eces ecrc ecrr ecsc ecse ecss ect- ectc ects eddc edde edds ede- eder edes edss edts eecs eede eeee eees eerc eers eese eetc eete eets ercc erce erde erds erec ered erer eres eret errc erre errs erse erst erts esce escr escs esds esee eser eses eset esrd esse esst estc estd este estr ests etcc etcs etds etec etee eter etes etre ette rccc rccs rcdc rcde rcds rcet rcrd rcsc rcsd rcss rctc rcts rder recc recd rece recr recs rect redc redd rede redr reds reed rees reet rerd rere rers rert rese ress rest retd rete retr rets rett rred rrrr rscc rscs rsdd rsds rsee rsre rsts rtcc rtce rtdt rtee rtes rtss rtts sccc scce sccs scct scdc scds scec scee scer scet scr- scrc scre scrs scsc scsd scsr scst sctc sctd sctr scts sdcc sddc sdds sder sdes sdet sdrc sdrs sdsc sdss se-c se-d se-e se-s se-t sec- secc secd sece secr secs sect sede seds seec seed seer sees seet serc serd sere serr sers sert sesc sese sess sest set- setc sete sets sett srcc srct srde srec sres srsd srtr sscc ssce sscs ssdc ssdd ssec ssee sses sset ssrc ssrs sssc ssss sstc sstd ssts stcc stcs stds stec sted stee ster stes stet strc strd stre strs stss sttc sttd sttr tccc tcdd tctc tcts tdes tdse tdss tecr tecs tect tedd tede teds teec teed teer tees teet ter- terc tere terr ters tesc tesd tese tess test tete tetr tets tett trcc tre- trec tred tree tres tret trsd trst trtc trte trtr tscc tsec tses tset tsse tssr tsst tstc tsts tter ttss tttt