cccc cccu ccrc ccrt cctc cctt ccuc ccut ckck ckcy ckrc ckry ckty crcc crcr crkc crrt crtc cruk crut cry- ctrc cucc cuck cuk- curr curt cury cut- cutc cutt cuy- cuyr cyc- cycc cyrk cyrt cyt- cyy- cyyc kccc kcck kccr kcct kccu kccy kckc kckk kckr kcky kcrc kcrr kcrt kcru kcry kctc kctu kcty kcuk kcyk kcyt kcyy kkck kkcr kkct kkcy kkkk kkrc kkrk kkrr kkrt kktc kktk kktu kkty kkut kkuu kkyc kkyy krcc krcu krkc krkk krkr krku krky krrc krrk krrr krrt krry krtc krtk krtr krty kruc kruk krur kryk kryy ktcc ktck ktcr ktcy ktkc ktkk ktkr ktkt ktku ktrc ktrk ktrr ktrt ktru ktry kttc kttk kttr kttt kttu ktty ktuc ktyr kucc kucr kukk kuku kuky kurk kurr kurt kuru kury kutr kutt kutu kuty kuuk kuur kuuu kuyu kuyy kycc kyck kycr kyct kykc kykk kykr kyky kyrc kyrk kytc kytt kyty kyuk kyur kyuu kyyk kyyt kyyy rccc rctc rcyc rrrr rtcc ruck ruct rukk ruku rurc ruru rutt rutu ruty ryck rytt ryuk ryyt tccc tccu tctc trcc trtc trtr truc truk trut truu try- tttt tucc tuck turc turk turr turt turu tury tutt tutu tuty tyck tyr- tyrr tytt tyty ucky ucrc ucut ukcc ukky ukrc ukur urcy urry uruk urur urut uttu uuuu yccc yctc ykut ykyt ytky yuck yuku yuky yurt yury yutu yuty yuyu yyyy