cccc cccu ccoc ccrc ccrt cctc cctt ccuc ccut coco coct cocu coot cor- corc coro corr cort cotc coto cott cotu cour cout crcc crcr croc croo cror crot crrt crtc crut ctor ctot ctrc cucc curo curr curt cut- cutc cuto cutt occc occt ocro ocrr oct- octo ocur oocr oooo oort orco oro- oror orot orro ortc orto oto- otoo otor otro otto ottu otur oucc our- ouro ourt out- outo ouu- rccc rctc rocc roco roor root rorc roro rort roru rotc roto rotr rott rout rrrr rtcc ruct rurc ruro ruru ruto rutt rutu tccc tccu tctc toco toor toot torc toro torr tort toru totc toto totr tott tour tout trcc troc troo trot trou trtc trtr truc trut truu tttt tucc tuco tuor turc turo turr turt turu tuto tutt tutu tuuo ucrc ucut uocc uor- uro- uroo urur urut utor utto uttu uuoc uuuu