cccc cccp ccee ccpe ccpp ccpr ccrc ccre ccrp cec- cece cecp ceec ceke cepc cepe cepp cepr cer- cerc cere cerp ceze ckck cker ckpc ckpr ckrc cpce cpep cper cpre crcc crce crcr crcz cre- crec cree crep crkc crkp crpc eccc ecce ecpp ecrc ecrr eeee eeke eerc eeze ekek eker ekpe epcc epec epee eper eppc eppp eprp ercc erce ercp erec erer erez erke erpe errc erre ezek ezer kccc kcck kccr kcec kcee kcep kcez kckc kckk kckr kckz kcpc kcpr kcrc kcrp kcrr kcrz kcze kczz keck kecr keek keep keer kekc keke kep- kepc kepe ker- kerc kere kerk kerp kerr kerz keze kezp kezr kezz kkck kkcr kkez kkkk kkpc kkpk kkpz kkrc kkre kkrk kkrr kkrz kkzz kpcc kpcr kpek kper kpez kpke kpkk kpkr kppc kppk kppp kppr kprc kpre kprk kprp kprr kprz kpzk krcc krce krec kree krek krez krkc krke krkk krkr krkz krpr krrc krre krrk krrr krrz krze krzk krzr krzz kzcr kzee kzer kzke kzkr kzkz kzpk kzpr kzrc kzrk kzrr kzrz kzzk kzzp kzzr kzzz pccc pcce pcep pcer pcpp pcrc pcre pece peck pecr pecz peec peek peep peer peke pekk pepe per- perc pere perk perp perr peze ppcc pper pppp pprc prcc prcp pre- prec pree prek prep prez rccc rcep recc rece reck recp recr recz reek reep reke repe repp repr rere reze rrrr zeck zeek zeep zeke zekr zepp zerk zeze zrce zrze zzzz