c-cd cccc ccdc ccdh ccdr cchr ccoc ccod ccrc cd-r cddr chch choc chod choh choo chor chrc chrd chro chrr coch coco codd coho cood cooh cor- corc cord coro corr crcc crcr crdc croc crod croh croo cror dccc dddd ddoc ddrc dhod dhor doch doco dod- dodd dodo dohc dohr dood door dorc dord doro dorr drod droh hccc hcch hcdr hcrd hdoc hdod hhhh hoch hocr hodh hodr hoho hood hoor horc hord horo horr hrdc hrod hrrc occc ocro ocrr oddd odoh odoo odor ohcc ohho ohoh oocr ooho oooh oooo oord orch orco ordo oro- oror orro rccc rcdc rcrd rdoc rhoc rhod rhoh rocc roch roco rodd rodo rohr rood roor rorc roro rrrr