c-cd cccc cccf cccu ccdc ccdf ccdr ccfc ccfd ccff ccoc ccod ccrc ccrf ccrt cctc cctt ccuc ccut cd-r cddr cdot cfcf cfco cffr cfor cfrt cftc cftk cftr ckck ckco ckdo ckdu ckfr ckoc ckoo ckor ckot ckrc ckrd cock coco coct cocu codd cofc coff coft cok- coko cood coof cook coot cor- corc cord corf cork coro corr cort cotc coto cott cotu coud couk cour cout crcc crcr crdc crfc crkc croc crod crok croo cror crot crrt crtc crtf crud cruk crut ctcf ctfc ctfo ctor ctot ctrc cucc cuck cufc cuff cufo cuk- curd curf curo curr curt cut- cutc cuto cutt dccc dcct dccu dcfc dcrk dctc dddd ddoc ddot ddrc dfcc dfco dfcu dfdt dfrf dftr dkdc dock doco doct docu dod- dodd dodo doff doko dood doof dook door doot dorc dord dorf dork doro dorr dort doru dotd dotk doto dott douc doud douf douk dour dout drfc drod drof drot drou druk drut druu dtcc dtfc dtor dtot duck duco duct dudd dudo dudu dufc duff dufu dukt duku duo- durk duro durt duru duur duut f--k fccf fcot fcto fcuk fdoc fdot fdtc ffcc ffff ffrr fftf fock foco fofo food foof fook foot for- ford fork foro forr fort foto fott foud four fout frcc frfc frot frou ft-c ftcd ftfc ftuc fuc- fuck fuct fudd fufc fuff fufu fukk fuko fuku fuor fur- furo furr furt futo futu kccc kccd kcck kccr kcct kccu kcdc kcdd kcdr kcdu kcfc kcfd kcfo kcft kckc kckf kckk kcko kckr kcof kcor kcot kcou kcrc kcro kcrr kcrt kcru kctc kcto kctu kcuf kcuk kdcc kdcd kdco kdcr kddc kddd kddf kddk kddr kdfc kdfo kdfr kdft kdkd kdkk kdko kdkr kdkt kdoc kdok kdot kdrf kdro kdtd kdtr kduc kdur kdut kfcd kfcf kfco kfcr kfff kffk kfok kfoo kfor kfrc kfrd kfro kfrr kfru kftc kftk kftt kftu kfuo kfut kkcd kkck kkco kkcr kkct kkdc kkdd kkdo kkdt kkfr kkft kkkk kkoo kkor kkot kkrc kkrf kkrk kkro kkrr kkrt kktc kktk kktu kkut kkuu kocd kocf kock koct kodk kodo kodt kodu kofc koff kofk kofo koft kofu kokc kokf kokk koko kokr koku kooc kook kooo koor koot koou korc kord korf kork koro korr kort koru kotc kotd kotk koto kotr kott kotu kour kout kouu krcc krcd krco krcu krdc krdd krdo krdr krdu krfc krfd krff krfo krft krkc krkd krkk krko krkr krku kroc krod krof krok kroo kror krrc krrf krrk krro krrr krrt krtc krtk krto krtr kruc kruf kruk krur ktcc ktck ktco ktcr ktdc ktdd ktdf ktdk ktdo ktdr ktfc ktfo ktkc ktkk ktko ktkr ktkt ktku ktoc ktok ktoo ktor ktot ktrc ktrf ktrk ktro ktrr ktrt ktru kttc kttf kttk ktto kttr kttt kttu ktuc ktuf kucc kucd kuco kucr kudd kudo kudu kufc kuff kufo kufr kukk kuku kuok kuoo kurd kurk kuro kurr kurt kuru kutf kuto kutr kutt kutu kuuk kuur kuuu occc occt ocro ocrr oct- octo ocur oddd odoo odor odot odou odtu odur ofcr ofdr off- offc offo offr offu ofor okcu okko okok okor okot okro okto okur oocr ooff ooku oooo oord oort orco ordo ordu orff orfu orko oro- orof orok oror orot orro ortc orto otcd otfc oto- otof otok otoo otor otro otto ottu otur oucc oudc oufc ouff our- ouro ourt out- outo ouu- rccc rcdc rcfc rcrd rctc rdoc rffc rftc rkkf rocc rock roco rodd rodo rofc roff rofo rokk roko rokr roku rood roof rook roor root rorc rork roro rort roru rotc rotk roto rotr rott roud rouf rouk rout rrfc rrrr rtcc rtdt rtfc ruck ruct rudd rudo rufc ruff rufo ruft rukk ruku ruok rurc rurd ruro ruru ruto rutt rutu ruud tccc tccu tcdd tcfc tctc tdff tdkr tdor tfcu tfdc tfot tftc tkod tkof tock toco todd todo todt todu toff tofo toft tofu toko toku tood toof took toor toot torc tord torf tork toro torr tort toru totc totd toto totr tott touk tour tout trcc trfc trfd trfr troc trod troo trot trou trtc trtr truc trud truk trut truu ttfc ttff tttt tucc tuck tuco tudu tufc tuff tufo tuft tufu tuko tuor turc turd turf turk turo turr turt turu tuto tutt tutu tuuo ucdc ucdd ucrc ucut udoo udot uduk ufcu ufuk ukcc ukko ukok ukrc ukur uocc uofo uor- urdu urff urft uro- urok uroo uruk urur urut utfo utor utto uttu uuoc uutf uuuu