c-cd cccc ccdc ccdh ccdn ccdr cchr ccnc ccnr ccoc ccod ccrc cd-r cddr cdnc cdon chch chnc chno chnr choc chod choh chon choo chor chrc chrd chrn chro chrr cnco cndd cnoh cnrc cnrr coch coco codd cohn coho con- conc cond conn cono cood cooh coon cor- corc cord corn coro corr crcc crcr crdc croc crod croh cron croo cror dccc dcon dddd ddoc ddrc dhod dhor dhrn dnoc dnrc doch doco dod- dodd dodo dohc dohr donc dond donn dono donr dood doon door dorc dord dorn doro dorr drnh drno drod droh dron hccc hcch hcdr hcrd hdoc hdod hhhh hndd hoch hocn hocr hodh hodr hohn hoho hond hono hood hoon hoor horc hord horn horo horr hrdc hrdn hrod hron hrrc nccc nccn nccr ncdc ncdn ncdr nchc nchd ncnc ncnd ncoc ncor ncrc ndcc nddo ndoc ndor ndrc nhcc nhnn nhon nhrc nnnn noch noco nodo nohn noho non- nonn nono noo- noon nooo noor nor- norc nord norn noro norr nrdc nroc nron nrrc nrrd occc occn ocon ocro ocrr oddd odoh odon odoo odor ohcc ohho ohno ohoh ohrn onc- oncd onco ondo onno onod onon onor oocr ooho oooh oooo oord orch orco ordn ordo ornc orno oro- oron oror orro rccc rcdc rcnr rcon rcrd rdoc rhoc rhod rhoh rhon rnco rndc rnod rocc roch roco rodd rodo rohn rohr ronc rond rono rood roon roor rorc roro rrrr