c-cd cccc cccf ccdc ccdf ccdh ccdr ccfc ccfd ccff cchr ccoc ccod ccrc ccrf cd-r cddr cfcf cfco cffr cfor chch chfc chfr choc chod choh choo chor chrc chrd chrf chro chrr coch coco codd cofc coff coho cood coof cooh cor- corc cord corf coro corr crcc crcr crdc crfc croc crod croh croo cror dccc dcfc dddd ddoc ddrc dfcc dfco dfrf dhfc dhod dhor doch doco dod- dodd dodo doff dohc dohr dood doof door dorc dord dorf doro dorr drfc drod drof droh fccf fcch fdoc ffcc ffff ffrr foch foco fofo fohr food foof for- ford foro forr frcc frfc froh hccc hcch hcdr hcfc hcrd hdfc hdoc hdod hhhh hhof hoch hocr hodh hodr hoff hoho hood hoof hoor horc hord horo horr hrdc hrfc hrod hrrc occc ocro ocrr oddd odoh odoo odor ofcr ofdr off- offc offh offo offr ofor ohcc ohho ohoh oocr ooff ooho oooh oooo oord orch orco ordo orff oro- orof oror orro rccc rcdc rcfc rcrd rdoc rffc rhoc rhod rhoh rocc roch roco rodd rodo rofc roff rofo rohr rood roof roor rorc roro rrfc rrrr