cccc cccs cccu ccrc ccrs ccrt ccss ccst cctc cctt ccuc ccus ccut ckck ckcs ckrc ckst ckts crcc crcr crkc crrt crss crst crtc crts cruk crus crut cscc cscr cscs csks csrc csrs cssr cstc cstr csts csur csus ctrc ctrs ctsc ctss ctsu ctts cucc cuck cuk- curr curs curt cusk cuss cust cusu cut- cutc cuts cutt kccc kcck kccr kcct kccu kckc kckk kckr kcrc kcrr kcrs kcrt kcru kcsc kcsr kcss kcst kcsu kctc kctu kcuk kkck kkcr kkcs kkct kkkk kkrc kkrk kkrr kkrs kkrt kksr kkss kkst kksu kktc kktk kkts kktu kkus kkut kkuu krcc krcs krcu krkc krkk krkr krks krku krrc krrk krrr krrs krrt krsc krsk krsr krss krst krsu krtc krtk krtr krts kruc kruk krur ksck kscr kscs kscu kskk kskr ksks ksku ksrr ksrs ksrt kssr ksss ksst kssu kstc kstk kstr ksts kstt kstu ksut ksuu ktcc ktck ktcr ktcs ktkc ktkk ktkr ktks ktkt ktku ktrc ktrk ktrr ktrs ktrt ktru ktsc ktsr ktst ktsu kttc kttk kttr ktts kttt kttu ktuc kucc kucr kukk kuks kuku kurk kurr kurs kurt kuru kusc kust kusu kutr kuts kutt kutu kuuk kuur kuuu rccc rccs rcsc rcss rctc rcts rkss rkts rrrr rscc rscs rsts rstu rtcc rtss rtts ruck ruct rukk ruku rurc rurs ruru rusk russ rust rusu ruts rutt rutu sccc sccs scct sck- scr- scrc scrs scsc scsr scst scsu sctc sctr scts scur scut skrt skss skur skut srcc srct srtr sscc sscs ssrc ssrs sssc ssss sstc ssts stcc stcs stcu stks strc strk strs stru stss sttc sttr stuc stuk stur stus stut suc- succ suck sucr sucs suks suku sur- surc surr surs surt suru sus- susk suss sust susu sutu suus tccc tccu tctc tcts tkts trcc trst trtc trtr truc truk trus trut truu tscc tsks tssr tsst tstc tsts ttss tttt tucc tuck tuks turc turk turr turs turt turu tusc tusk tuss tust tuts tutt tutu ucrc ucsc ucst ucsu ucut ukcc ukrc uksc ukur urss ursu urts uruk urur urus urut us-k uscc uscs ussc ussr usss usst ussu ustc usts usus utsc uttu uuuu