c-cd cccc cccf cccs cccu ccdc ccdf ccdr ccds cced ccee ccfc ccfd ccff ccrc ccre ccrf ccrs ccsd ccsf ccss ccuc ccus cd-e cd-r cdcs cddr cdec cdef cder cdes cdfe cdfs cdre cdrs cdss cec- cece cecs cedd cede cedu ceec cees cef- cefc ceke cer- cerc cerd cere cerf cers cesc cese cesr cess cfcf cfcs cfds cffr cfre cfse ckck ckcs ckdu cker ckfr ckrc ckrd crcc crce crcr crdc cre- crec cred cree cres creu crfc crfs crkc crss crud crue cruk crus cscc cscd csce cscf cscr cscs csdr csec csee cser csfc csfr csks csrc csrd csrs cssd csse cssr csuf csur csus cucc cuce cuck cude cuds cued cuek cuer cues cufc cuff cuk- cuke curd cure curf curr curs cusd cusk cuss cusu dccc dccs dccu dcds dcfc dcfs dcrk dcsc dcss dddd ddes ddrc ddre ddss dec- decc decd dece deck decs dedd dede dedu deed deef deek deer dees defe deff defs dek- deke deks der- derc dere derf derk derr ders des- desc dese desk dess desu deue deuk deur deus dfcc dfcs dfcu dfds dfer dfrf dkdc dred dree dref drek dres drfc drrs drue druk drus druu dscc dscr dscs dsdr dsfc dsrc dsrr dssc duce duck ducs dudd dude duds dudu duer dues dufc duff dufu duke duku dure durk duru duse dusk duur eccc ecce ecdc ecdf eced ecef eces ecfc ecfr ecfs ecks ecrc ecrf ecrr ecru ecsc ecse ecss ecsu ecus eddc edde edds ede- eder edes edfu edru edss educ edur eecs eede eedu eeee eees eefe eeke eeks eerc eers eese eesk efes effs efke eked ekek eker ekes ekfc ekur ercc erce erde erdf erds erec ered erer eres erfc erfs erke erks errc erre errs erse eruc erur erus esce escr escs escu esds esdu esee esek eser eses esfs eske esks esku esrd esse essu esuf esus eucd eude euer eufc eur- eurc eure euse f--k fccf fcds fces fcsc fcuk fece feck fede feds feed feek feer fees fefc fefe feff feke ferc ferd fere ferk ferr fers feru fese fess feud feus ffcc ffee ffff ffrr ffss frcc fred free fres frfc frsc frue fscc fsck fsec fssc fssf fuc- fuck fudd fude fufc fuff fufu fuke fukk fuku fur- fure furr furs fusc fusd fuse fusk fuss fusu kccc kccd kcck kccr kccu kcdc kcdd kcdr kcds kcdu kcec kced kcee kceu kcfc kcfd kckc kckf kckk kckr kcrc kcrr kcrs kcru kcsc kcsd kcse kcsf kcsr kcss kcsu kcue kcuf kcuk kdcc kdcd kdce kdcr kddc kddd kddf kddk kddr kdec kdef kdfc kdfr kdkd kdkk kdkr kdrf kdrs kdsc kdsd kdsk kdsr kdss kdsu kduc kdur kdus keck kecr kedc kedd kede kedr keds keed keef keek keer kees kefc keff kefr kefs kekc keke keks keku ker- kerc kere kerf kerk kerr kers keru kesc kesd kesk kesr kess keur keus kfcd kfcf kfcr kfcs kfed kfer kfff kffk kfrc kfrd kfre kfrr kfrs kfru kfsd kfse kfsk kfsr kkcd kkck kkcr kkcs kkdc kkdd kked kkfr kkfs kkkk kkrc kkre kkrf kkrk kkrr kkrs kksd kkse kksf kksr kkss kksu kkus kkuu krcc krcd krce krcs krcu krdc krdd krde krdr krds krdu krec kred kree kref krek kres kreu krfc krfd krfe krff krfs krkc krkd krke krkk krkr krks krku krrc krre krrf krrk krrr krrs krsc krsd krse krsf krsk krsr krss krsu kruc krue kruf kruk krur ksce ksck kscr kscs kscu ksdc ksdk ksdr ksds ksec ksed ksee ksek kser ksfc ksfe ksfr kskd kske kskf kskk kskr ksks ksku ksrf ksrr ksrs ksse kssr ksss kssu ksud ksue ksuu kucc kucd kuce kucr kudd kude kudu kued kuek kues kueu kufc kuff kufr kuke kukk kuks kuku kurd kure kurk kurr kurs kuru kusc kusd kusf kusu kuuk kuur kuuu rccc rccs rcdc rcde rcds rcfc rcrd rcsc rcsd rcss rder recc recd rece reck recr recs recu redc redd rede redr reds redu reed reef reek rees refd refe reff refr refs refu reke reks rerd rere rers reru rese ress reue reuf reuk reus reuu rfds rfef rffc rkkf rkss rred rrfc rrrr rscc rscs rsdd rsds rsee rsfc rsre ruce ruck rudd rude ruds rued ruer rues rufc rufe ruff ruke rukk ruku rurc rurd rure rurs ruru ruse rusk russ rusu ruud sccc scce sccs scdc scdf scds scec scee scer scfc scfe sck- scr- scrc scre scrs scsc scsd scsr scsu scud scur sdcc sddc sdds sdef sder sdes sdfc sdrc sdrs sdsc sdsf sdss sdsu se-c se-d se-e se-f se-k se-s se-u sec- secc secd sece seck secr secs secu sede seds seec seed seef seek seer sees seeu seff seke sekk seku serc serd sere serf serk serr sers seru sesc sese sess seur sfcc sfcs sfdc sfdk sfer sffc sfrc sfss sfsu sked skee sker skes skfc sksd skss skud skue skur srcc srde srec sres srfc srsd sscc ssce sscs ssdc ssdd ssdf ssec ssee sses ssfc ssrc ssrs sssc sssf ssss suc- succ suck sucr sucs sudd sude suds sued suee suer sues sueu suf- sufc suff sufr sufs sufu suke suks suku sur- surc surd sure surf surr surs suru sus- susd suse susk suss susu suus ucdc ucdd uces ucrc ucsc ucsd ucsf ucsu udds uder udsd uduk uers uess ufcu ufer uffe ufuk ukcc ukek ukes ukeu ukrc uksc ukur urde urds urdu ure- ured ures urfe urff urke urre urse urss ursu uruk urur urus us-k uscc usce uscf uscs usdc usde usdf usds used usee usef user uses usfc usfs uske ussc usse ussf ussr usss ussu usus uuuu