cccc ccci cccu ccee ccic ccii ccir ccrc ccre ccri ccuc cec- cece ceci ceec ceke cer- cerc cere ceri ceui cicc cici cicr cicu ciee cier ciii cikr circ cire ciri cirk cirr ciuc ckck cker ckrc crcc crce crcr cre- crec cree crei creu cric crie crik criu crkc crue cruk cucc cuce cuci cuck cuek cuer cui- cuir cuk- cuke cure curi curr eccc ecce ecci ecrc ecri ecrr ecru eeee eeke eerc eick eiec eiei eier eike eiki eire ekek eker ekki ekur ercc erce erec erei erer eric erie erik eriu erke erki errc erre eruc erur euer eur- eurc eure iccc icci iccr iccu icec icee icer icke icrc icre icrr icru icue iecc ieie iere ieri iiie iiii iirc iiuc ikee iker ikki ikri ikue ircc ircu iree irer iri- iric irie irki irrc irre irri iucc iuce iuiu k-ci kccc kcci kcck kccr kccu kcec kcee kcei kceu kcic kcie kcii kcir kciu kckc kckk kckr kcrc kcri kcrr kcru kcue kcui kcuk keck kecr keek keer keii keik keir kekc keke keki keku ker- kerc kere keri kerk kerr keru keur kicc kice kick kicr kier kieu kiic kiii kiik kiiu kikc kiki kikk kikr kiku kirc kiri kirk kirr kiru kiur kiuu kkci kkck kkcr kkic kkik kkkk kkrc kkre kkrk kkrr kkuu krcc krce krci krcu krec kree krei krek kreu krik krkc krke krki krkk krkr krku krrc krre krri krrk krrr kruc krue krui kruk krur kucc kuce kuci kucr kuei kuek kueu kuic kuie kuik kuke kuki kukk kuku kure kuri kurk kurr kuru kuuk kuur kuuu rccc rcic recc rece reci reck recr recu reek reii reik reir reiu reke reki rere reri reru reue reuk reuu ricc rice rick riek rier rieu rike riki rikk riku rire riri riue rrrr ruce ruci ruck ruer ruke ruki rukk ruku rurc rure ruri ruru u-ie ucci ucrc ueir ueki uirr ukcc ukek ukeu ukrc ukur urci ure- uric urie urik uriu urke urre urri uruk urur uuri uuuu