cccc cccp ccee ccoc ccpe ccpp cec- cece ceco cecp ceec ceke ceop cepc cepe cepo cepp ceze ckck ckco ckoc ckoo ckpc coce cock coco cocp coep cok- coke coko cook coop cope copo copp coze cozz cpce cpep eccc ecce ecco ecko eco- ecop ecpp eeee eeke eeoc eeze ekco ekek ekpe ekpo epcc epec epee epoc eppc eppo eppp ezek ezop ezzo kccc kcck kcec kcee kceo kcep kcez kckc kckk kcko kckz kcoe kcoz kcpc kcpo kcze kczo kczz keck keco keek keep kekc keke keko keok kep- kepc kepe keze kezp kezz kkck kkco kkez kkkk kkoo kkoz kkpc kkpk kkpz kkzz kock kocp kokc koke kokk koko kokp kokz kooc kook kooo koop kooz kope kopp koze kozk kozo kpcc kpek kpez kpke kpkk kpoc kpoe kpok kpoo kpop kppc kppk kppo kppp kpzk kzee kzke kzkz kzoo kzoz kzpk kzpo kzzk kzzo kzzp kzzz o-eo occc oce ocee ocke ocpp oec- oecc oeec okko okok okpe okpo oooo ooze opec opep opo- oppo ozee ozek pccc pcce pcep pcoe pcpp pece peck peco pecz peec peek peep peke pekk peko pepe pepo peze pezo poce pock poco poke poko pook poop pop- popc pope popo popp poze pozo ppcc pppo pppp zeck zeek zeep zeke zeko zepo zepp zeze zoco zoke zoo- zook zoop zope zozo zzzz