c-cd cccc cccf cccs ccdc ccdf ccdn ccdr ccds ccfc ccfd ccff ccnc ccnf ccnr ccns ccoc ccod ccrc ccrf ccrs ccsd ccsf ccsn ccss cd-r cdcs cddr cdfs cdnc cdnf cdon cdos cdrs cdss cfcf cfcn cfco cfcs cfds cffr cfnr cfns cfor cfos cfrn cnco cndd cnrc cnrr cnss coco codd cods cofc coff cofs con- conc cond conf conn cono cons cood coof coon coos cor- corc cord corf corn coro corr cors cosc coso coss crcc crcr crdc crfc crfs crns croc crod cron croo cror crss cscc cscd cscf csco cscr cscs csdn csdr csfc csfr csor csos csrc csrd csrs cssd cssr dccc dccs dcds dcfc dcfs dcns dcon dcos dcsc dcss dddd ddoc ddrc ddss dfcc dfco dfcs dfds dfrf dncs dnoc dnrc dnsc doco docs dod- dodd dodo dods doff donc dond donn dono donr dons dood doof doon door doos dorc dord dorf dorn doro dorr dors doso doss drfc drno drod drof dron drrs dscc dscn dscr dscs dsdr dsfc dsos dsrc dsrr dssc dssn fccf fcds fcsc fdoc fdos ffcc ffff ffrr ffss fndd fndn fndr fnrs foco focs fofo fond fono fons food foof foon foos for- ford forn foro forr fors foso foss frcc frcn frfc frns fron fros frsc frso fscc fsfo fssc fssf nccc nccf nccn nccr nccs ncdc ncdn ncdr ncds ncfc ncnc ncnd ncoc ncor ncos ncrc ncsc ncsf ncss ndcc ndcs nddo ndoc ndor ndos ndrc ndrf ndsf ndss nfdc nfff nfon nfrs nfsr nnnn nnos nnss noco nocs nodo nods non- nonn nono nons noo- noon nooo noor noos nor- norc nord norf norn noro norr nors nos- noss nrcs nrdc nrds nrfc nroc nron nrrc nrrd nrsc nscc nscd nscs nsdf nsds nsfc nsfs nsnr nsof nsos nsrc nsrd nssc nssf nsso nssr nsss occc occn ocds ocon ocos ocro ocrr ocrs oddd odds odon odoo odor odos odso ofcr ofdr off- offc offo offr offs ofno ofor onc- oncd oncf onco ondo onno onod onon onor onos onsc onso oocr ooff oofs oons oooo ooos oord orco orcs ordn ordo ords orff orfs ornc orno orns oro- orof oron oror oros orro orrs orso oscc osco osno osnr osoo osor osos osrd osro ossd osso rccc rccs rcdc rcds rcfc rcnr rcon rcos rcrd rcsc rcsd rcss rdoc rdos rdso rfds rffc rnco rncs rndc rndf rnds rnod rocc roco rocs rodd rodo rods rofc roff rofo ronc rond rono rons rood roof roon roor roos rorc roro rosc roso ross rrfc rrrr rscc rscn rscs rsdd rsds rsfc rsnn rsno rsnr rsos s-os sccc sccs scdc scdf scds scfc scnd scnr scon scoo scor scr- scrc scrn scrs scsc scsd scsn scso scsr sdcc sdco sddc sdds sdfc sdrc sdrs sdsc sdsf sdss sfcc sfco sfcs sfdc sffc sfor sfos sfrc sfro sfss sncc sncf snco snns snoc snod snoo snor snos snrs snsd soco socr socs sodd sodo sods sofo son- sond sono sons sood soof soon soor soos sord sorn soro sorr sors soso soss srcc srfc srnn srno sros srsd sscc sscs ssdc ssdd ssdf ssfc ssns ssoc ssrc ssrs sssc sssf ssss