c-cd cccc cccp ccdc ccdp ccdr cced ccee ccpe ccpp ccpr ccrc ccre ccrp cd-e cd-r cddr cdec cder cdex cdre cec- cece cecp cedd cede ceec cepc cepe cepp cepr cer- cerc cerd cere cerp cexe cpce cpep cper cppd cpre crcc crce crcr crdc cre- crec cred cree crep crex crpc cxxx dccc dccp dcxx dddd ddrc ddre dec- decc decd dece dedd dede deed deep deer depc depe depp depr der- derc dere derp derr dex- dexe dpcp dper dppc dppx dred dree dxcc dxdc dxdr dxec dxed dxep dxrd dxre dxrp dxrr dxrx dxxr dxxx eccc ecce ecdc eced ecpd ecpp ecrc ecrr eddc edde eddp ede- eder edex eede eeee eerc epcc epec epee eper eppc eppp eprp epxp er-x ercc erce ercp erde erec ered erer erpe errc erre exec exed exer expr exrx pccc pcce pcep pcer pcpp pcrc pcrd pcre pdcp pdpr pdrc pece pecr ped- pede peec peed peep peer pepd pepe per- perc perd pere perp perr ppcc ppcd pper pppd pppp pprc prcc prcd prcp pre- prec pred pree prep prex prpd prrd rccc rcdc rcde rcep rcpd rcrd rder rdpc recc recd rece recp recr redc redd rede redr redx reed reep repe repp repr rerd rere rexx rpdp rred rrrr x-ed xdcc xeer xer- xexe xpcc xper xrcd xrep xxxx