cccc ccci ccic ccii ccir ccix ccoc ccrc ccri ccrt cctc cctt ccxi cicc cici cico cicr cict ciii ciit cior circ ciri ciro cirr cirt citi cito citt city cixi coco coct coir coit coix coot cor- corc cori coro corr cort cory cotc coti coto cott coty coxy coyo coyr coyt crcc crcr cric crit croc croo cror crot croy crrt crtc cry- cryo ctic ctor ctot ctrc cxii cxix cxro cxxi cxxx cyc- cycc cyrt cyt- cyto cyy- cyyc iccc icci icco iccr icct icoc icor icrc icrr icrt icry iiii iiio iiit iioi iioo iirc iitr iitt ioci ioii ioio ioit iooi iooo iori ioto ircc ircx iri- iric irio irix iriy iroc irrc irri irti itic itoi itoo itor itri itry itto itty ixxi 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 orix oro- oror orot oroy orri orro orry ortc orto oryx otic otit oto- otoo otor otoy otro otry otti otto otyr oxi- oxic oxo- oxox oxxo oxy- oyri rccc rcic rctc rcti rcyc ricc rico rict riot riri riti rito ritt rixc rixo rixy riyo rocc roco roio roir roit rooi roor root roox rorc rori roro rort rory rotc roti roto rotr rott roty roxo roxy royt rrrr rtcc ryot rytt ryyt tccc tctc ticc tico tiit tiri tiro tirr tiry titc titi tito titt tixt tiyi tiyo to-y toci toco toit toor toot torc tori toro torr tort torx tory totc toti toto totr tott toty tox- toxi toxo toxt toyo toyt trcc tri- tric trio trit trix troc troi troo trot trox troy trtc trtr try- tryo ttoy tttt txii txtr tyco tyir tyr- tyro tyrr tyti tyto tytt tyty tyxt xcii xcri xico xiii xito xixi xoco xoro xoxo xoyo xtro xtry xxii xxix xxxi xxxo xxxx xxxy xyr- yccc yctc yirr yiti yoit yoix yoot yori yoro yort yory yott yoyo yyyy