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 city ciuc ciyu crcc crcr cric crit criu crrt crtc crut cry- ctic ctrc cucc cuci cui- cuir cuit curi curr curt cury cut- cutc cutt cuy- cuyr cyc- cycc cyrt cyt- cyy- cyyc iccc icci iccr icct iccu icrc icrr icrt icru icry iiii iiit iirc iitr iitt iiuc ircc ircu iri- iric iriy irrc irri irti itic itri itry itty itur iucc iuiu iuty rccc rcic rctc rcti rcyc ricc rict riri riti ritt ritu rrrr rtcc ruci ruct ruit rurc ruri ruru ruti rutt rutu ruty ruyi rytt ryyt tccc tccu tctc ticc tiit tiiu tiri tirr tiru tiry titc titi titt titu tiyi trcc tri- tric trit trtc trtr truc trut truu try- tttt tucc tuit tuiu turc turi turr turt turu tury tuti tutt tutu tuty tyir tyr- tyrr tyti tytt tyty ucci ucrc ucut uirr urci urcy uric uriu urri urry urur urut utri utti uttu uuri uuuu uyir yccc yctc yirr yiti yuit yuri yurt yury yutu yuty yuyu yyyy