cccc ccci ccee ccic ccii ccir ccrc ccre ccri cec- cece ceci ceec cer- cerc cere ceri cery ceze cezy cicc cici cicr ciee cier ciez ciii circ cire ciri cirr cize crcc crce crcr crcz cre- crec cree crei cric crie cry- cryz cyc- cycc cyre cyy- cyyc czyz eccc ecce ecci ecrc ecri ecrr eeee eerc eery eeze eiec eiei eier eire eiry ercc erce erec erei erer erez eric erie eriz errc erre eryc erye erzi eyec eyer eyey eyez eyir eyre eyry eyyr ezer ezri iccc icci iccr icec icee icer icey icrc icre icrr icry iecc ieie iere ieri iiie iiii iirc ircc iree irer iri- iric irie iriy irrc irre irri iyer iyre izze izzy rccc rcic rcyc recc rece reci recr recy recz reii reir reiz rere reri rery reye reze rezi ricc rice rier riez rire riri rize rizi rizz rrrr ryze yccc ycee ycie yeer yeie yeii yeir yere yeri yerr yery yeye yeyi yeyr yezi yire yirr yyyy zeir zeri zeze zice zirc ziri ziyi zizi zizz zrce zrze zyyi zzzz