c-cd cccc cccm cccp cccu ccdc ccdm ccdp ccdr cckm ccmc ccmd ccmm ccmp ccpm ccpp ccpr ccrc ccrp ccrt cctc cctt ccuc ccup ccut cd-r cddr ckck ckcm ckdm ckdu ckmp ckpc ckpr ckrc ckrd ckrm cmcc cmdr cmmc cmpc cmpd cmpk cmpp cmrr cmtc cmtu cpcm cpcu cpmp cppd cppm cprm cprt cptp cptr crcc crcr crdc crkc crkp crmp crpc crrt crtc crtm crtp crud cruk crum crup crut ctcp ctpp ctrc ctrm ctrp cucc cuck cucm cuk- cum- cump cumt cupp cupr curd curr curt cut- cutc cutt dccc dccp dcct dccu dcmp dcmu dcrk dctc dctm dcup dddd ddrc dkdc dmcc dmcm dmdc dmdt dmpk dmpu dmrc dpcp dpdt dppc dprk drmk druk drum drup drut druu dtcc dtdp dtmp dttp duck duct dudd dudu dukt duku dumm dump durk durt duru dutp duur duut kccc kccd kcck kccr kcct kccu kcdc kcdd kcdr kcdu kckc kckk kckm kckr kcmc kcmd kcmk kcmm kcmp kcmr kcmt kcpc kcpm kcpr kcpt kcpu kcrc kcrp kcrr kcrt kcru kctc kctu kcuk kcup kdcc kdcd kdcr kddc kddd kddk kddr kdkd kdkk kdkr kdkt kdmc kdmd kdmr kdmt kdpr kdrm kdtd kdtp kdtr kduc kdup kdur kdut kkcd kkck kkcm kkcr kkct kkdc kkdd kkdm kkdt kkkk kkmc kkmk kkmp kkmr kkmt kkpc kkpk kkpt kkrc kkrk kkrr kkrt kktc kktk kktu kkup kkut kkuu kmcc kmcd kmcm kmcr kmcu kmdr kmkk kmkt kmmk kmmm kmmr kmmt kmpc kmpr kmpt kmrc kmrr kmtc kmtk kmtp kmtr kmtt kmuc kmud kmur kpcc kpcr kpdc kpdr kpkk kpkr kpmd kpmp kpmr kppc kppd kppk kppp kppr kprc kprd kprk kprm kprp kprr kprt kpru kptd kptm kptr kptt kpum kpur krcc krcd krcm krcu krdc krdd krdm krdr krdu krkc krkd krkk krkr krku krmc krmd krmp krmr krmt krpm krpr krpt krpu krrc krrk krrm krrr krrt krtc krtk krtm krtr kruc kruk krum krup krur ktcc ktck ktcm ktcr ktdc ktdd ktdk ktdm ktdr ktkc ktkk ktkr ktkt ktku ktmc ktmd ktmk ktmm ktmp ktmr ktmt ktmu ktpk ktpr ktpt ktrc ktrk ktrm ktrp ktrr ktrt ktru kttc kttk kttp kttr kttt kttu ktuc ktum kucc kucd kucp kucr kudd kudu kukk kuku kumm kump kumr kumt kumu kupd kupr kupt kupu kurd kurk kurm kurr kurt kuru kutp kutr kutt kutu kuuk kuur kuuu mccc mccd mcdc mcdd mckk mcmc mcmt mcpc mcpd mcpp mcrc mcrd mctc mctk mctu mdcc mddm mdmc mdmk mdmp mdpc mdpp mdrc mdud mmcc mmcd mmcm mmct mmdc mmmc mmmd mmmm mmpc mmpr mmpu mmrc mmrp mpcc mpct mpmc mppc mppp mprp mptc mptp mr-c mrcc mrcp mrdd mrkr mrmc mrmd mrrc mrtm mrtt mrud mruk mtcr mtpd mtrc mtrr mttr mtuc muc- mucc muck mucu mudd mudu mumm mump mumu murc murd murk murr murt muru mutt mutu muut pccc pcpm pcpp pcrc pcrd pdcp pdmu pdpr pdrc pdtc pkmr pkmt pmcc pmcd pmdc pmkd pmmp pmmu pmpm pmrc pmrt pmut ppcc ppcd ppcm ppdk pppd pppp pprc pprm ppru pptt ppur prcc prcd prcp prmc prpd prrd prrm prtc prtm prtp prtr prud prum prut pruu ptcc ptdc ptmp ptpd ptrd pttc pttk puck pudu puku pump pupu pur- purp purr puru put- putt putu puuc rccc rcdc rcmp rcpd rcpt rcrd rctc rdcm rdpc rmrp rmtu rpdp rptd rrkm rrmc rrmp rrrr rrum rtcc rtcm rtdt rtmc rtmp rttp ruck ruct rudd rudp rukk ruku rumm rump rumt rupp rupt rurc rurd rurp ruru rutt rutu ruud tccc tccu tcdd tctc tdkp tdkr tmcc tmcm tmdp tmmk tmtt tpcd tpck tpcp tpdu tpmt tppd tppp tppr tptp tptr tput trcc trmd trmk trmu trpc trpm trpp trtc trtr truc trud truk trut truu ttcp tttt tucc tuck tudu tump tumu tupu turc turd turk turm turp turr turt turu tutt tutu tuum u-rp uccp ucdc ucdd ucmc ucrc ucut udmc udpd uduk ukcc ukrc ukum ukup ukur umpc umut updm upmc uppc uppp uppu upup urdu uruk urum urup urur urut utmp utpd uttu uucp uuuu