cccc ccci ccee ccic ccii ccir ccrc ccre ccri cec- cece ceci ceec cer- cerc cere ceri ceze cicc cici cicr ciee cier ciez ciii circ cire ciri cirr cize crcc crce crcr crcz cre- crec cree crei cric crie eccc ecce ecci ecrc ecri ecrr eeee eerc eeze eiec eiei eier eire ercc erce erec erei erer erez eric erie eriz errc erre erzi ezer ezri iccc icci iccr icec icee icer icrc icre icrr iecc ieie iere ieri iiie iiii iirc ircc iree irer iri- iric irie irrc irre irri izze rccc rcic recc rece reci recr recz reii reir reiz rere reri reze rezi ricc rice rier riez rire riri rize rizi rizz rrrr zeir zeri zeze zice zirc ziri zizi zizz zrce zrze zzzz