c-cd cccc cccf cccs ccdc ccdf ccdr ccds ccfc ccfd ccff ccoc ccod ccrc ccrf ccrs ccsd ccsf ccss cd-r cdcs cddr cdfs cdos cdrs cdss cfcf cfco cfcs cfds cffr cfor cfos ckck ckco ckcs ckdo ckfr ckoc ckoo ckor ckos ckrc ckrd ckso cock coco codd cods cofc coff cofs cok- coko cood coof cook coos cor- corc cord corf cork coro corr cors cosc coso coss crcc crcr crdc crfc crfs crkc croc crod crok croo cror crss cscc cscd cscf csco cscr cscs csdr csfc csfr csks csor csos csrc csrd csrs cssd cssr dccc dccs dcds dcfc dcfs dcos dcrk dcsc dcss dddd ddoc ddrc ddss dfcc dfco dfcs dfds dfrf dkdc dock doco docs dod- dodd dodo dods doff doko dood doof dook door doos dorc dord dorf dork doro dorr dors dosk doso doss drfc drod drof drrs dscc dscr dscs dsdr dsfc dsos dsrc dsrr dssc f--k fccf fcds fcsc fdoc fdos ffcc ffff ffrr ffss fock foco focs fofo food foof fook foos for- ford fork foro forr fors foso foss frcc frfc fros frsc frso fscc fsck fsfo fssc fssf k-os kccc kccd kcck kccr kcdc kcdd kcdr kcds kcfc kcfd kcfo kckc kckf kckk kcko kckr kcof kcor kcos kcrc kcro kcrr kcrs kcsc kcsd kcsf kcsr kcss kdcc kdcd kdco kdcr kddc kddd kddf kddk kddr kdfc kdfo kdfr kdkd kdkk kdko kdkr kdoc kdok kdrf kdro kdrs kdsc kdsd kdsk kdsr kdss kfcd kfcf kfco kfcr kfcs kfff kffk kfok kfoo kfor kfrc kfrd kfro kfrr kfrs kfsd kfsk kfsr kkcd kkck kkco kkcr kkcs kkdc kkdd kkdo kkfr kkfs kkkk kkoo kkor kkrc kkrf kkrk kkro kkrr kkrs kksd kksf kksr kkss kocd kocf kock kocs kodk kodo kods kofc koff kofk kofo kokc kokf kokk koko kokr koks kooc kook kooo koor koos korc kord korf kork koro korr kors kos- kosc kosd kosf koso kosr koss krcc krcd krco krcs krdc krdd krdo krdr krds krfc krfd krff krfo krfs krkc krkd krkk krko krkr krks kroc krod krof krok kroo kror kros krrc krrf krrk krro krrr krrs krsc krsd krsf krsk krsr krss ksck ksco kscr kscs ksdc ksdk ksdr ksds ksfc ksfo ksfr kskd kskf kskk ksko kskr ksks ksoc ksof ksok ksoo ksor ksos ksrf ksro ksrr ksrs ksso kssr ksss occc ocds ocks ocos ocro ocrr ocrs oddd odds odoo odor odos odso ofcr ofdr off- offc offo offr offs ofor okko okok okor okro okso oocr ooff oofs oooo ooos oord orco orcs ordo ords orff orfs orko oro- orof orok oror oros orro orrs orsk orso oscc osco osoo osor osos osrd osro ossd osso rccc rccs rcdc rcds rcfc rcos rcrd rcsc rcsd rcss rdoc rdos rdso rfds rffc rkkf rkos rkss rocc rock roco rocs rodd rodo rods rofc roff rofo rokk roko rokr roks rood roof rook roor roos rorc rork roro rosc roso ross rrfc rrrr rscc rscs rsdd rsds rsfc rsos s-os sccc sccs scdc scdf scds scfc sck- scok scoo scor scr- scrc scrs scsc scsd scso scsr sdcc sdco sddc sdds sdfc sdrc sdrs sdsc sdsf sdss sfcc sfco sfcs sfdc sfdk sffc sfor sfos sfrc sfro sfss skfc skor sksd skss sock soco socr socs sodd sodo sods sofo sokk soko sood soof sook soor soos sord soro sorr sors soso soss srcc srfc sros srsd sscc sscs ssdc ssdd ssdf ssfc ssoc ssrc ssrs sssc sssf ssss