cccc cccf ccci cccu ccee ccfc ccff ccfi ccic ccii ccir ccrc ccre ccrf ccri ccuc cec- cece ceci ceec cef- cefc cer- cerc cere cerf ceri ceui cfcf cffr cfre cicc cici cicr cicu ciee cier cife ciff ciii circ cire ciri cirr ciuc crcc crce crcr cre- crec cree crei creu crfc cric crie crif criu crue cucc cuce cuci cuer cufc cuff cufi cui- cuif cuir cure curf curi curr eccc ecce ecci ecef ecfc ecfr ecrc ecrf ecri ecrr ecru eeee eefe eerc effi efic eiec eiei eier eire ercc erce erec erei erer erfc eric erie eriu errc erre eruc erur euer eufc eufi eur- eurc eure fccf fcic fcii fece feer fefc fefe feff fefi feie feir ferc fere ferr feru ffcc ffee ffff ffii ffrr ficc fice fiec fief fier fifc fife fiff fifi fiii fire frcc free frei frfc fric frie frue fuc- fuci fufc fuff fufu fuir fur- fure furi furr iccc iccf icci iccr iccu icec icee icef icer icrc icre icrf icrr icru icue iecc ieie iere ieri ifer ific ifrf ifri iiie iiii iirc iiuc ircc ircu iree irer irfe irfu iri- iric irie irrc irre irri iucc iuce iuef iuiu rccc rcfc rcic recc rece reci recr recu reef refe reff refi refr refu reif reii reir reiu rere reri reru reue reuf reuu rfef rffc rfic ricc rice rief rier rieu rife riff rifu riif rire riri riue rrfc rrif rrrr ruce ruci ruer rufc rufe ruff ruif rurc rure ruri ruru u-ie ucci ucrc ueir ufcu ufer uffe uirr urci ure- urfe urff urfi uric urie urif uriu urre urri urur uuri uuuu