cccc cccp ccee ccoc ccpe ccpp cec- cece ceco cecp ceec ceke ceop cepc cepe cepo cepp ckck ckco ckoc ckoo ckpc coce cock coco cocp coep cok- coke coko cook coop cope copo copp cpce cpep eccc ecce ecco ecko eco- ecop ecpp eeee eeke eeoc ekco ekek ekpe ekpo epcc epec epee epoc eppc eppo eppp kccc kcck kcec kcee kceo kcep kckc kckk kcko kcoe kcpc kcpo keck keco keek keep kekc keke keko keok kep- kepc kepe kkck kkco kkkk kkoo kkpc kkpk kock kocp kokc koke kokk koko kokp kooc kook kooo koop kope kopp kpcc kpek kpke kpkk kpoc kpoe kpok kpoo kpop kppc kppk kppo kppp o-eo occc oce ocee ocke ocpp oec- oecc oeec okko okok okpe okpo oooo opec opep opo- oppo pccc pcce pcep pcoe pcpp pece peck peco peec peek peep peke pekk peko pepe pepo poce pock poco poke poko pook poop pop- popc pope popo popp ppcc pppo pppp