cccc ccci cccu cccv ccic ccii ccir cciv ccoc ccrc ccri ccrt cctc cctt cctv ccuc ccut ccvi ccvo cicc cici cico cicr cict cicu ciii ciit cior circ ciri ciro cirr cirt citi cito citt citu citv ciuc civc civo coco coct cocu coir coit coot cor- corc cori coro corr cort cotc coti coto cott cotu cour cout covo crcc crcr cric crit criu croc croo cror crot crrt crtc crtv crut ctic ctor ctot ctrc ctvo ctvt cucc cuci cui- cuir cuit curi curo curr curt cut- cutc cuto cutt cutv cvcc cvii cvrr iccc icci icco iccr icct iccu icoc icor icrc icrr icrt icru ictv iiii iiio iiit iioi iioo iirc iitr iitt iiuc ioci ioii ioio ioit iooi iooo iori ioto ircc ircu iri- iric irio iroc irov irrc irri irti itic itoi itoo itor itou itri itto itur iucc iucv iuiu ivic ivor occc occi occt ocro ocrr oct- octi octo ocur oici oiii oirt oitc oiti oocr oooo oort orci orco ori- oric orio orit oro- oror orot orri orro ortc orto orvr otic otit oto- otoo otor otov otro otti otto ottu otur oucc ouii ouir ouit our- ouro ourt out- outi outo ouu- ovi- ovo- ovoo ovot rccc rcic rctc rcti rctv rcuv rcvr ricc rico rict riot riou riri riti rito ritt ritu rivo rocc roco roio roir roit roiu rooi roor root rorc rori roro rort roru rotc roti roto rotr rott rout rovi rovo rrrr rtcc rtvi ruci ruct ruit rurc ruri ruro ruru ruti ruto rutt rutu ruvi ruvu rv-c tccc tccu tcov tctc ticc tico tiit tiiu tiou tiri tiro tirr tiru titc titi tito titt titu tivi tivo toci toco toit toor toot torc tori toro torr tort toru torv totc toti toto totr tott toui tour tout touv tovo trcc tri- tric trio trit troc troi troo trot trou trtc trtr truc trut truu tttt tucc tuco tuit tuiu tuor turc turi turo turr turt turu tuti tuto tutt tutu tuuo tvri tvro tvrr tvtv ucci ucio ucrc uctv ucut uirr uocc uor- uovo urci uric uriu uro- uroo urri urur urut utor utri utti utto uttu uuoc uuri uuuu uv-c uvic uvri uvvu vcci vic- vici vico vict viii virc viri viro virr virt viru viti vito vitt vitu vivi vivo voic voio voir voit vooc voor voot vor- vori voro vort voru voto vour vout vrci vrio vroc vrot vrto vt-i vuco vuir vuit vurt vuti vutv vvvv