c-cd cccc cccp ccdc ccdp cced ccee ccoc ccod ccpe ccpp cd-e cdec cec- cece ceco cecp cedd cede cedo ceec ceke ceop cepc cepe cepo cepp ckck ckco ckdo ckoc ckoo ckpc coce cock coco cocp codd code coed coep cok- coke coko cood cook coop copd cope copo copp cpce cpep cppd dccc dccp dcop dcpo dddd ddoc ddpo dec- decc decd dece deck deco dedd dede dedo deed deek deep dek- deke deop depc depe depo depp dkdc doce dock doco dod- dodd dode dodo doek doke doko dood dook doop dope dopo dopp dpcp dppc eccc ecce ecco ecdc eced ecko eco- ecod ecop ecpd ecpp eddc edde eddo eddp ede- edoc edod eede eeee eeke eeoc ekco eked ekek ekpe ekpo eocd eode epcc epec epee epoc epod eppc eppo eppp kccc kccd kcck kcdc kcdd kcec kced kcee kceo kcep kckc kckk kcko kcoe kcpc kcpo kdcc kdcd kdce kdco kddc kddd kddk kdec kdep kdkd kdkk kdko kdoc kdoe kdok keck keco kedc kedd kede kedo kedp keed keek keep kekc keke keko keok kep- kepc kepd kepe kkcd kkck kkco kkdc kkdd kkdo kked kkkk kkoo kkpc kkpk kocd kock kocp kode kodk kodo koed kokc koke kokk koko kokp kooc kook kooo koop kope kopp kpcc kpdc kpdo kpek kpke kpkk kpoc kpod kpoe kpok kpoo kpop kppc kppd kppk kppo kppp o-eo occc oce oced ocee ocke ocpd ocpp oddd oded odeo odoo odop oec- oecc oedo oeec oked okko okok okpe okpo oooo opec oped opep opo- oppo pccc pcce pcep pcod pcoe pcpp pdcp pdoc pece peck peco ped- pede pedo peec peed peek peep peke pekk peko pepd pepe pepo pocd poce pock poco pod- podd pode podo poed poke poko pood pook poop pop- popc pope popo popp ppcc ppcd ppdk ppod pppd pppo pppp