c-cd cccc cccp ccdc ccdh ccdp ccdr cchp cchr ccoc ccod ccpp ccpr ccrc ccrp cd-r cddr chch chcp choc chod choh choo chop chor chpp chpr chrc chrd chro chrp chrr coch coco cocp codd coho cood cooh coop copd coph copo copp copr cor- corc cord coro corp corr cppd crcc crcr crdc croc crod croh croo crop cror crpc dccc dccp dcop dcpo dddd ddoc ddpo ddrc dhcp dhod dhor dhpr doch doco dod- dodd dodo dohc dohr dood doop door dopo dopp dopr dorc dord doro dorp dorr dpcp dphp dppc dpph drod droh drop hccc hcch hcdr hcpc hcrd hcrp hdoc hdod hhhh hhpc hoch hocr hodh hodr hoho hood hoop hoor hopo hopp horc hord horo horr hpcc hpdh hrdc hrod hrpc hrpp hrrc occc ocpd ocpp ocro ocrr oddd odoh odoo odop odor odrp ohcc ohho ohoh oocr ooho oooh oooo oord opo- opor oppo orch orco ordo oro- oror orpc orph orro pccc pchp pcod pcpp pcrc pcrd pdcp pdoc pdpr pdrc phcc phoh phoo phrr pocd poch poco pod- podd podo pood pooh poop poor pop- popc popo popp porc poro porr ppcc ppcd ppod pppd pppo pppp pprc prcc prcd prcp pro- proc prod proo prop prpd prrd rccc rcdc rcpd rcpo rcrd rdoc rdpc rhcp rhoc rhod rhoh rocc roch roco rodd rodo rohr rood roop roor ropo rorc roro rpdp rpho rrrr