cccc cccf cccu ccee ccfc ccff ccrc ccre ccrf ccrt cctc cctt ccuc ccut cec- cece cect ceec cef- cefc cer- cerc cere cerf cert cet- cete cfcf cffr cfre cfrt cftc cfte cftr crcc crce crcr cre- crec cree cret creu crfc crrt crtc crtf crue crut ctcf ctec ctfc ctrc cucc cuce cuer cufc cuff cure curf curr curt cut- cutc cute cutt eccc ecce ecct ecef ecfc ecfr ecrc ecrf ecrr ecru ect- ectc ectf eeee eefe eerc eetc eete eetu efet eft- eftu ercc erce erec erer eret erfc erft errc erre ertu eruc erur etcc etec etee eter etfc etfe etre ette ettu euer eufc eur- eurc eure eurt fccf fece fect feer feet fefc fefe feff ferc fere ferr fert feru fete fetr fett fetu ffcc ffee ffff ffrr fftf frcc free fret frfc frue ft-c fter ftfc ftuc fuc- fuct fuet fufc fuff fufu fur- fure furr furt fute futu rccc rcet rcfc rctc recc rece recr rect recu reef reet refe reff refr reft refu rere rert reru rete retr rett reue reuf reut reuu rfef rffc rftc rrfc rrrr rtcc rtce rtee rtfc ruce ruct ruer ruet rufc rufe ruff ruft rurc rure ruru rute rutt rutu tccc tccu tcfc tctc tecr tect teec teef teer teet tefc teff teft ter- terc tere terf terr teru tete tetr tett tetu teut tfcu tfec tftc trcc tre- trec tree tref tret treu trfc trfr trtc trte trtr truc true trut truu tter ttfc ttff tttt tucc tuer tuet tufc tufe tuff tuft tufu turc ture turf turr turt turu tute tutt tutu ucrc ucut ufcu ufer uffe ure- uret urfe urff urft urre urte urur urut utec uter uttu uutf uuuu