cccc cccs cccu ccee ccrc ccre ccrs ccrt ccss ccst cctc cctt ccuc ccus ccut cec- cece cecs cect ceec cees ceke cer- cerc cere cers cert cesc cese cesr cess cest cet- cete cets ckck ckcs cker ckrc ckst ckts crcc crce crcr cre- crec cree cres cret creu crkc crrt crss crst crtc crts crue cruk crus crut cscc csce cscr cscs csec csee cser cset csks csrc csrs csse cssr cstc cstr csts csur csus ctec ctrc ctrs ctsc ctss ctsu ctts cucc cuce cuck cuek cuer cues cuk- cuke cure curr curs curt cusk cuss cust cusu cut- cutc cute cuts cutt eccc ecce ecct eces ecks ecrc ecrr ecru ecsc ecse ecss ecsu ect- ectc ects ecus eecs eeee eees eeke eeks eerc eers eese eesk eetc eete eets eetu ekek eker ekes eket ekur ercc erce erec erer eres eret erke erks errc erre errs erse erst erts ertu eruc erur erus esce escr escs escu esee esek eser eses eset eske esks esku esse esst essu estc este estr ests esus etcc etcs etec etee eter etes etre etsu ette ettu euer eur- eurc eure eurt euse kccc kcck kccr kcct kccu kcec kcee kcet kceu kckc kckk kckr kcrc kcrr kcrs kcrt kcru kcsc kcse kcsr kcss kcst kcsu kctc kcte kctu kcue kcuk keck kecr keek keer kees keet kekc keke keks keku ker- kerc kere kerk kerr kers kert keru kesc kesk kesr kess kest ket- ketc kete ketk ketr kets kett ketu keur keus kkck kkcr kkcs kkct kkkk kkrc kkre kkrk kkrr kkrs kkrt kkse kksr kkss kkst kksu kktc kktk kkts kktu kkus kkut kkuu krcc krce krcs krcu krec kree krek kres kret kreu krkc krke krkk krkr krks krku krrc krre krrk krrr krrs krrt krsc krse krsk krsr krss krst krsu krtc krtk krtr krts kruc krue kruk krur ksce ksck kscr kscs kscu ksec ksee ksek kser kset kske kskk kskr ksks ksku ksrr ksrs ksrt ksse kssr ksss ksst kssu kstc kste kstk kstr ksts kstt kstu ksue ksut ksuu ktcc ktce ktck ktcr ktcs ktec ktee ktek ktkc ktke ktkk ktkr ktks ktkt ktku ktrc ktre ktrk ktrr ktrs ktrt ktru ktsc ktsr ktst ktsu kttc kttk kttr ktts kttt kttu ktuc kucc kuce kucr kuek kues kueu kuke kukk kuks kuku kure kurk kurr kurs kurt kuru kusc kust kusu kute kutr kuts kutt kutu kuuk kuur kuuu rccc rccs rcet rcsc rcss rctc rcts recc rece reck recr recs rect recu reek rees reet reke reks rekt rere rers rert reru rese ress rest rete retr rets rett reue reuk reus reut reuu rkss rkts rrrr rscc rscs rsee rsre rsts rstu rtcc rtce rtee rtes rtss rtts ruce ruck ruct ruer rues ruet ruke rukk ruku rurc rure rurs ruru ruse rusk russ rust rusu rute ruts rutt rutu sccc scce sccs scct scec scee scer scet sck- scr- scrc scre scrs scsc scsr scst scsu sctc sctr scts scur scut se-c se-e se-k se-s se-t se-u sec- secc sece seck secr secs sect secu seec seek seer sees seet seeu seke sekk sekt seku serc sere serk serr sers sert seru sesc sese sess sest set- setc sete sets sett seur skee sker skes sket skrt skss skue skur skut srcc srct srec sres srtr sscc ssce sscs ssec ssee sses sset ssrc ssrs sssc ssss sstc ssts stcc stcs stcu stec stee stek ster stes stet stks strc stre strk strs stru stss sttc sttr stuc stue stuk stur stus stut suc- succ suck sucr sucs suee suer sues suet sueu suke suks suku sur- surc sure surr surs surt suru sus- suse susk suss sust susu sute sutu suus tccc tccu tctc tcts teck tecr tecs tect teec teek teer tees teet teke ter- terc tere terk terr ters teru tesc tese tess test tete tetr tets tett tetu teuk teut tkts trcc tre- trec tree trek tres tret treu trst trtc trte trtr truc true truk trus trut truu tscc tsec tses tset tsks tsse tssr tsst tstc tsts tter ttss tttt tucc tuck tuer tues tuet tuke tuks turc ture turk turr turs turt turu tusc tusk tuss tust tute tuts tutt tutu uces ucrc ucsc ucst ucsu ucut uers uess ukcc ukek ukes ukeu ukrc uksc ukur ure- ures uret urke urre urse urss ursu urte urts uruk urur urus urut us-k uscc usce uscs usee user uses uset uske ussc usse ussr usss usst ussu ustc uste usts usus utec uter utes utsc uttu uuuu