cccc cccs cccu ccee ccrc ccre ccrs ccrt ccss ccst cctc cctt ccuc ccus ccut cec- cece cecs cect ceec cees cer- cerc cere cers cert cesc cese cesr cess cest cet- cete cets crcc crce crcr cre- crec cree cres cret creu crrt crss crst crtc crts crue crus crut cscc csce cscr cscs csec csee cser cset csrc csrs csse cssr cstc cstr csts csur csus ctec ctrc ctrs ctsc ctss ctsu ctts cucc cuce cuer cues cure curr curs curt cuss cust cusu cut- cutc cute cuts cutt eccc ecce ecct eces ecrc ecrr ecru ecsc ecse ecss ecsu ect- ectc ects ecus eecs eeee eees eerc eers eese eetc eete eets eetu ercc erce erec erer eres eret errc erre errs erse erst erts ertu eruc erur erus esce escr escs escu esee eser eses eset esse esst essu estc este estr ests esus etcc etcs etec etee eter etes etre etsu ette ettu euer eur- eurc eure eurt euse rccc rccs rcet rcsc rcss rctc rcts recc rece recr recs rect recu rees reet rere rers rert reru rese ress rest rete retr rets rett reue reus reut reuu rrrr rscc rscs rsee rsre rsts rstu rtcc rtce rtee rtes rtss rtts ruce ruct ruer rues ruet rurc rure rurs ruru ruse russ rust rusu rute ruts rutt rutu sccc scce sccs scct scec scee scer scet scr- scrc scre scrs scsc scsr scst scsu sctc sctr scts scur scut se-c se-e se-s se-t se-u sec- secc sece secr secs sect secu seec seer sees seet seeu serc sere serr sers sert seru sesc sese sess sest set- setc sete sets sett seur srcc srct srec sres srtr sscc ssce sscs ssec ssee sses sset ssrc ssrs sssc ssss sstc ssts stcc stcs stcu stec stee ster stes stet strc stre strs stru stss sttc sttr stuc stue stur stus stut suc- succ sucr sucs suee suer sues suet sueu sur- surc sure surr surs surt suru sus- suse suss sust susu sute sutu suus tccc tccu tctc tcts tecr tecs tect teec teer tees teet ter- terc tere terr ters teru tesc tese tess test tete tetr tets tett tetu teut trcc tre- trec tree tres tret treu trst trtc trte trtr truc true trus trut truu tscc tsec tses tset tsse tssr tsst tstc tsts tter ttss tttt tucc tuer tues tuet turc ture turr turs turt turu tusc tuss tust tute tuts tutt tutu uces ucrc ucsc ucst ucsu ucut uers uess ure- ures uret urre urse urss ursu urte urts urur urus urut uscc usce uscs usee user uses uset ussc usse ussr usss usst ussu ustc uste usts usus utec uter utes utsc uttu uuuu