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 cery cfcf cfcy cffr cfre cfry cicc cici cicr ciee cier cife ciff ciii circ cire ciri cirr crcc crce crcr cre- crec cree crei crfc cric crie crif cry- cyc- cycc cyfe cyfi cyre cyy- cyyc eccc ecce ecci ecef ecfc ecfr ecrc ecrf ecri ecrr eeee eefe eerc eery effi effy efic eiec eiei eier eire eiry ercc erce erec erei erer erfc eric erie errc erre eryc erye eyec eyer eyey eyfi eyir eyre eyry eyyr fccf fcic fcii fece feer fefc fefe feff fefi feie feir ferc fere ferr fery feyr ffcc ffee ffff ffii ffrr ficc fice fiec fief fier fifc fife fiff fifi fiii fire firy frcc free frei frey frfc fric frie frye fyce fyfe fyfi fyre fyry iccc iccf icci iccr icec icee icef icer icey icrc icre icrf icrr icry iecc ieie iere ieri ifer iffy ific ifrf ifri iiie iiii iirc ircc iree irer irfe iri- iric irie iriy irrc irre irri iyer iyre rccc rcfc rcic rcyc recc rece reci recr recy reef refe reff refi refr reif reii reir rere reri rery reye rfef rffc rfic ricc rice rief rier rife riff riif rire riri riyf rrfc rrif rrrr ryfe ryff ryif ryyf yccc ycee ycie yeer yefe yeff yeie yeii yeir yere yeri yerr yery yeye yeyi yeyr yiff yire yirr yyfe yyff yyyy