cccc ccci cccu ccic ccii ccir ccrc ccri ccrt cctc cctt ccuc ccut cicc cici cicr cict cicu ciii ciit circ ciri cirr cirt citi citt citu ciuc crcc crcr cric crit criu crrt crtc crut ctic ctrc cucc cuci cui- cuir cuit curi curr curt cut- cutc cutt iccc icci iccr icct iccu icrc icrr icrt icru iiii iiit iirc iitr iitt iiuc ircc ircu iri- iric irrc irri irti itic itri itur iucc iuiu rccc rcic rctc rcti ricc rict riri riti ritt ritu rrrr rtcc ruci ruct ruit rurc ruri ruru ruti rutt rutu tccc tccu tctc ticc tiit tiiu tiri tirr tiru titc titi titt titu trcc tri- tric trit trtc trtr truc trut truu tttt tucc tuit tuiu turc turi turr turt turu tuti tutt tutu ucci ucrc ucut uirr urci uric uriu urri urur urut utri utti uttu uuri uuuu