cccc ccci cccu ccic ccii ccir ccrc ccri ccrt cctc cctt ccuc ccut cicc cici cicr cict cicu ciii ciit cikr circ ciri cirk cirr cirt citi citt citu ciuc ckck ckrc crcc crcr cric crik crit criu crkc crrt crtc cruk crut ctic ctrc cucc cuci cuck cui- cuir cuit cuk- curi curr curt cut- cutc cutt iccc icci iccr icct iccu icrc icrr icrt icru iiii iiit iirc iitr iitt iiuc ikki ikri ircc ircu iri- iric irki irrc irri irti itic itri itur iucc iuiu k-ci kccc kcci kcck kccr kcct kccu kcic kcii kcir kcit kciu kckc kckk kckr kcrc kcri kcrr kcrt kcru kctc kcti kctu kcui kcuk kicc kick kicr kict kiic kiii kiik kiit kiiu kikc kiki kikk kikr kikt kiku kirc kiri kirk kirr kirt kiru kitc kiti kitr kitt kitu kiur kiuu kkci kkck kkcr kkct kkic kkik kkit kkkk kkrc kkrk kkrr kkrt kktc kktk kktu kkut kkuu krcc krci krcu krik krit krkc krki krkk krkr krku krrc krri krrk krrr krrt krtc krti krtk krtr kruc krui kruk krur ktcc ktck ktcr ktic ktik ktkc ktkk ktkr ktkt ktku ktrc ktri ktrk ktrr ktrt ktru kttc ktti kttk kttr kttt kttu ktuc ktui kucc kuci kucr kuic kuik kuki kukk kuku kuri kurk kurr kurt kuru kuti kutr kutt kutu kuuk kuur kuuu rccc rcic rctc rcti ricc rick rict riki rikk riku riri riti ritt ritu rrrr rtcc ruci ruck ruct ruit ruki rukk ruku rurc ruri ruru ruti rutt rutu tccc tccu tctc ticc tick tiit tiiu tiki tiku tiri tirr tiru titc titi titt titu trcc tri- tric trik trit trtc trtr truc truk trut truu tttt tucc tuck tuik tuit tuiu turc turi turk turr turt turu tuti tutt tutu ucci ucrc ucut uirr ukcc ukrc ukur urci uric urik uriu urri uruk urur urut utik utri utti uttu uuri uuuu