c-cd cccc cccs cccu ccdc ccdr ccds ccrc ccrs ccsd ccss ccuc ccus cd-r cdcs cddr cdrs cdss ckck ckcs ckcy ckdu ckrc ckrd ckry crcc crcr crdc crkc crss crud cruk crus cry- crys cscc cscd cscr cscs csdr csks csrc csrd csrs cssd cssr csur csus csys cucc cuck cuds cuk- curd curr curs cury cusd cusk cuss cusu cusy cuy- cuyr cyc- cycc cycs cyds cyrk cyrs cyy- cyyc dc-y dccc dccs dccu dcds dcrk dcsc dcss dddd ddrc ddry ddss dkdc drrs druk drus druu dry- drys dscc dscr dscs dsdr dsrc dsrr dssc duck ducs dudd duds dudu duku durk duru dury dusk dusy duur duyr dycd dyck dycu dydd dykr dyku dyr- dyrc dyrk dyru dys- dysr dyss dyur dyyr kccc kccd kcck kccr kccu kccy kcdc kcdd kcdr kcds kcdu kcdy kckc kckk kckr kcky kcrc kcrr kcrs kcru kcry kcsc kcsd kcsr kcss kcsu kcsy kcuk kcyk kcys kcyy kdcc kdcd kdcr kddc kddd kddk kddr kdkd kdkk kdkr kdrs kdry kdsc kdsd kdsk kdsr kdss kdsu kduc kdur kdus kdyk kkcd kkck kkcr kkcs kkcy kkdc kkdd kkdy kkkk kkrc kkrk kkrr kkrs kksd kksr kkss kksu kkus kkuu kkyc kkys kkyy krcc krcd krcs krcu krdc krdd krdr krds krdu krdy krkc krkd krkk krkr krks krku krky krrc krrk krrr krrs krry krsc krsd krsk krsr krss krsu krsy kruc kruk krur kryd kryk kryy ksck kscr kscs kscu kscy ksdc ksdk ksdr ksds kskd kskk kskr ksks ksku ksky ksrr ksrs ksry kssr ksss kssu ksud ksuu ksyc ksyr ksyy kucc kucd kucr kudd kudu kukk kuks kuku kuky kurd kurk kurr kurs kuru kury kusc kusd kusu kuuk kuur kuuu kuyu kuyy kycc kyck kycr kycs kydd kyds kydy kykc kykd kykk kykr kyks kyky kyrc kyrk kyrs kysc kysk kysr kyuk kyur kyus kyuu kyyk kyys kyyy rccc rccs rcdc rcds rcrd rcsc rcsd rcss rcyc rkss rrrr rscc rscs rscy rsdd rsds ruck rudd ruds rudy rukk ruku rurc rurd rurs ruru rusk russ rusu rusy ruud ruyd ruys ryck rydy rysy ryuk sccc sccs sccy scdc scds sck- scr- scrc scrs scry scsc scsd scsr scsu scud scur sdcc sddc sdds sdrc sdrs sdry sdsc sdss sdsu sksd skss skud skur sky- skyr skys skyy srcc srsd sscc sscs ssdc ssdd ssrc ssrs sssc ssss suc- succ suck sucr sucs sudd suds suks suku suky sur- surc surd surr surs suru sury sus- susd susk suss susu susy suus suyr suyu syck sycr syds syrs syry syss syyk ucdc ucdd ucky ucrc ucsc ucsd ucsu udds udsd uduk ukcc ukky ukrc uksc ukur urcy urds urdu urdy urry urss ursu ursy uruk urur urus us-k uscc uscs usdc usds ussc ussr usss ussu ussy usus uuuu yccc yksc yssu yuck yudu yuks yuku yuky yurd yury yuyu yyyy