cccc ccci cccp ccee ccic ccii ccip ccir ccpe ccpp ccpr ccrc ccre ccri ccrp cec- cece ceci cecp ceec ceip ceke cepc cepe cepp cepr cer- cerc cere ceri cerp cicc cici cicr ciee cier ciii cikr cipp circ cire ciri cirk cirr ckck cker ckpc ckpr ckrc cpce cpep cper cpic cpre cpri crcc crce crcr cre- crec cree crei crep cric crie crik crip crkc crkp crpc eccc ecce ecci ecip ecpp ecrc ecri ecrr eeee eeke eerc eick eiec eiei eier eike eiki eipr eire ekek eker ekki ekpe epcc epci epec epee eper epi- epic epie epik epip eppc eppp eprp ercc erce ercp erec erei erer eric erie erik erke erki erpe errc erre iccc icci iccp iccr icec icee icer icke icpc icrc icre icrr iecc ieie iere ieri iiie iiii iirc ikee iker ikki ikri ipcc ipce ipec ipek iper ipie ippc ippr ipri ircc iree irer iri- iric irie irip irki irpc irpe irrc irre irri k-ci kccc kcci kcck kccr kcec kcee kcei kcep kcic kcie kcii kcir kckc kckk kckr kcpc kcpi kcpr kcrc kcri kcrp kcrr keck kecr keek keep keer keii keik keir kekc keke keki kep- kepc kepe kepi ker- kerc kere keri kerk kerp kerr kicc kice kick kicp kicr kier kiic kiii kiik kiip kikc kiki kikk kikr kip- kipe kipi kipp kipr kirc kiri kirk kirp kirr kkci kkck kkcr kkic kkik kkkk kkpc kkpk kkrc kkre kkrk kkrr kpcc kpcr kpek kper kpir kpke kpkk kpkr kppc kppk kppp kppr kprc kpre kpri kprk kprp kprr krcc krce krci krec kree krei krek krik krkc krke krki krkk krkr krpi krpr krrc krre krri krrk krrr pccc pcce pcep pcer pcip pcpp pcrc pcre pece peci peck pecr peec peek peep peer peip peir peke peki pekk pepe pepi per- perc pere peri perk perp perr picc pice pici pick picr piep pier piip pike piki pikk pipe pipi pipp pirc pire piri pirk pirr ppcc ppci pper ppic ppie pppp pprc prcc prcp pre- prec pree prek prep pri- prie prii prri rccc rcep rcic rcpi recc rece reci reck recp recr reek reep reii reik reir reke reki repe repi repp repr rere reri ricc rice rick riek riep rier rike riki rikk ripe ripi ripp ripr rire riri rpii rrrr