cccc ccci cccv ccic ccii ccir cciv ccoc ccrc ccri ccrt cctc cctt cctv ccvi ccvo cicc cici cico cicr cict ciii ciit cior circ ciri ciro cirr cirt citi cito citt citv city civc civo civy coco coct coir coit coot cor- corc cori coro corr cort cory cotc coti coto cott coty covo covy coyo coyr coyt crcc crcr cric crit croc croo cror crot croy crrt crtc crtv cry- cryo ctic ctor ctot ctrc ctvo ctvt cvcc cvii cvrr cyc- cycc cyrt cyt- cyto cyy- cyyc iccc icci icco iccr icct icoc icor icrc icrr icrt icry ictv iiii iiio iiit iioi iioo iirc iitr iitt ioci ioii ioio ioit iooi iooo iori ioto ircc iri- iric irio iriy iroc irov irrc irri irti itic itoi itoo itor itri itry itto itty ivic ivor ivry occc occi occt ocro ocrr oct- octi octo octy oici oiii oirt oiry oitc oiti oocr oooo oort oory ooty orci orco ori- oric orio orit oro- oror orot oroy orri orro orry ortc orto orvr otic otit oto- otoo otor otov otoy otro otry otti otto otyr ovi- ovo- ovoo ovot oyri rccc rcic rctc rcti rctv rcvr rcyc ricc rico rict riot riri riti rito ritt rivo riyo rocc roco roio roir roit rooi roor root rorc rori roro rort rory rotc roti roto rotr rott roty rovi rovo royt rrrr rtcc rtvi rv-c ryot rytt ryyt tccc tcov tctc ticc tico tiit tiri tiro tirr tiry titc titi tito titt tivi tivo tivy tiyi tiyo to-y toci toco toit toor toot torc tori toro torr tort torv tory totc toti toto totr tott toty tovo toyo toyt trcc tri- tric trio trit troc troi troo trot troy trtc trtr try- tryo ttoy tttt tvri tvro tvrr tvtv tvyo tyco tyir tyr- tyro tyrr tyti tyto tytt tyty vcci vic- vici vico vict viii virc viri viro virr virt viry viti vito vitt vivi vivo vivy voic voio voir voit vooc voor voot vor- vori voro vort vory voto voyi vrci vrio vroc vrot vrto vryt vt-i vvvv vyir vyit vyrt yccc yctc yirr yiti yivo yoit yoot yori yoro yort yory yott yoyo yvor yvto yyyy