cccc cccf ccci ccee ccfc ccff ccfi ccic ccii ccir ccrc ccre ccrf ccri cec- cece ceci ceec cef- cefc cer- cerc cere cerf ceri cfcf cffr cfre cicc cici cicr ciee cier cife ciff ciii circ cire ciri cirr crcc crce crcr cre- crec cree crei crfc cric crie crif eccc ecce ecci ecef ecfc ecfr ecrc ecrf ecri ecrr eeee eefe eerc effi efic eiec eiei eier eire ercc erce erec erei erer erfc eric erie errc erre fccf fcic fcii fece feer fefc fefe feff fefi feie feir ferc fere ferr ffcc ffee ffff ffii ffrr ficc fice fiec fief fier fifc fife fiff fifi fiii fire frcc free frei frfc fric frie iccc iccf icci iccr icec icee icef icer icrc icre icrf icrr iecc ieie iere ieri ifer ific ifrf ifri iiie iiii iirc ircc iree irer irfe iri- iric irie irrc irre irri rccc rcfc rcic recc rece reci recr reef refe reff refi refr reif reii reir rere reri rfef rffc rfic ricc rice rief rier rife riff riif rire riri rrfc rrif rrrr