cccc cccm ccmc ccmm ccnc ccnm ccnr ccoc ccom ccrc cmcc cmmc cmmn cmoc cmon cmrn cmrr cnco cnrc cnrr coco com- comc comm como comr con- conc conn cono coom coon cor- corc corm corn coro corr crcc crcr crmn crmo croc crom cron croo cror mccc mcmc mcrc mmcc mmcm mmmc mmmm mmor mmrc moco momo mon- monc monn mono mooc moon moor morn moro mr-c mrcc mrmc mrnc mron mrrc nccc nccn nccr ncmm ncnc ncoc ncor ncrc nmmc nmoc nmon nmrc nnmc nnnn noco nom- nomo non- nonn nono noo- noon nooo noor nor- norc norm norn noro norr nroc nron nrrc occc occn ocom ocon ocro ocrr omn- omo- omon omoo omor omro onc- onco onno onon onor oocr oooo orco ormn ormo ornc orno oro- orom oron oror orro rccc rcnr rcon rmon rnco rocc roco romm romo ronc rono room roon roor rorc roro rrmc rrrr