c-cd cccc cccs ccdc ccdn ccdr ccds ccnc ccnr ccns ccoc ccod ccrc ccrs ccsd ccsn ccss cd-r cdcs cddr cdnc cdon cdos cdrs cdss cnco cndd cnrc cnrr cnss coco codd cods con- conc cond conn cono cons cood coon coos cor- corc cord corn coro corr cors cosc coso coss crcc crcr crdc crns croc crod cron croo cror crss cscc cscd csco cscr cscs csdn csdr csor csos csrc csrd csrs cssd cssr dccc dccs dcds dcns dcon dcos dcsc dcss dddd ddoc ddrc ddss dncs dnoc dnrc dnsc doco docs dod- dodd dodo dods donc dond donn dono donr dons dood doon door doos dorc dord dorn doro dorr dors doso doss drno drod dron drrs dscc dscn dscr dscs dsdr dsos dsrc dsrr dssc dssn nccc nccn nccr nccs ncdc ncdn ncdr ncds ncnc ncnd ncoc ncor ncos ncrc ncsc ncss ndcc ndcs nddo ndoc ndor ndos ndrc ndss nnnn nnos nnss noco nocs nodo nods non- nonn nono nons noo- noon nooo noor noos nor- norc nord norn noro norr nors nos- noss nrcs nrdc nrds nroc nron nrrc nrrd nrsc nscc nscd nscs nsds nsnr nsos nsrc nsrd nssc nsso nssr nsss occc occn ocds ocon ocos ocro ocrr ocrs oddd odds odon odoo odor odos odso onc- oncd onco ondo onno onod onon onor onos onsc onso oocr oons oooo ooos oord orco orcs ordn ordo ords ornc orno orns oro- oron oror oros orro orrs orso oscc osco osno osnr osoo osor osos osrd osro ossd osso rccc rccs rcdc rcds rcnr rcon rcos rcrd rcsc rcsd rcss rdoc rdos rdso rnco rncs rndc rnds rnod rocc roco rocs rodd rodo rods ronc rond rono rons rood roon roor roos rorc roro rosc roso ross rrrr rscc rscn rscs rsdd rsds rsnn rsno rsnr rsos s-os sccc sccs scdc scds scnd scnr scon scoo scor scr- scrc scrn scrs scsc scsd scsn scso scsr sdcc sdco sddc sdds sdrc sdrs sdsc sdss sncc snco snns snoc snod snoo snor snos snrs snsd soco socr socs sodd sodo sods son- sond sono sons sood soon soor soos sord sorn soro sorr sors soso soss srcc srnn srno sros srsd sscc sscs ssdc ssdd ssns ssoc ssrc ssrs sssc ssss