c-cd cccc cccf ccdc ccdf ccdh ccdn ccdr ccfc ccfd ccff cchr ccnc ccnf ccnr ccoc ccod ccrc ccrf cd-r cddr cdnc cdnf cdon cfcf cfcn cfco cffr cfnr cfor cfrn chch chfc chfr chnc chno chnr choc chod choh chon choo chor chrc chrd chrf chrn chro chrr cnco cndd cnoh cnrc cnrr coch coco codd cofc coff cohn coho con- conc cond conf conn cono cood coof cooh coon cor- corc cord corf corn coro corr crcc crcr crdc crfc croc crod croh cron croo cror dccc dcfc dcon dddd ddoc ddrc dfcc dfco dfrf dhfc dhod dhor dhrn dnoc dnrc doch doco dod- dodd dodo doff dohc dohr donc dond donn dono donr dood doof doon door dorc dord dorf dorn doro dorr drfc drnh drno drod drof droh dron fccf fcch fdoc ffcc ffff ffrr fndd fndn fndr foch foco fofo fohn fohr fond fono food foof foon for- ford forn foro forr frcc frcn frfc froh fron hccc hcch hcdr hcfc hcrd hdfc hdoc hdod hhhh hhof hndd hoch hocn hocr hodh hodr hoff hohn hoho hond hono hood hoof hoon hoor horc hord horn horo horr hrdc hrdn hrfc hrod hron hrrc nccc nccf nccn nccr ncdc ncdn ncdr ncfc nchc nchd ncnc ncnd ncoc ncor ncrc ndcc nddo ndhf ndoc ndor ndrc ndrf nfdc nfff nfon nhcc nhnn nhon nhrc nnnn noch noco nodo nohn noho non- nonn nono noo- noon nooo noor nor- norc nord norf norn noro norr nrdc nrfc nroc nron nrrc nrrd occc occn ocon ocro ocrr oddd odoh odon odoo odor ofcr ofdr off- offc offh offo offr ofno ofor ohcc ohho ohno ohoh ohrn onc- oncd oncf onco ondo onno onod onon onor oocr ooff ooho oooh oooo oord orch orco ordn ordo orff ornc orno oro- orof oron oror orro rccc rcdc rcfc rcnr rcon rcrd rdoc rffc rhoc rhod rhoh rhon rnco rndc rndf rnod rocc roch roco rodd rodo rofc roff rofo rohn rohr ronc rond rono rood roof roon roor rorc roro rrfc rrrr