cccc ccci ccic ccii ccir ccoc ccrc ccri cicc cici cico cicr ciii cior circ ciri ciro cirr coco coir cor- corc cori coro corr cory coyo coyr crcc crcr cric croc croo cror croy cry- cryo cyc- cycc cyy- cyyc iccc icci icco iccr icoc icor icrc icrr icry iiii iiio iioi iioo iirc ioci ioii ioio iooi iooo iori ircc iri- iric irio iriy iroc irrc irri occc occi ocro ocrr oici oiii oiry oocr oooo oory orci orco ori- oric orio oro- oror oroy orri orro orry oyri rccc rcic rcyc ricc rico riri riyo rocc roco roio roir rooi roor rorc rori roro rory rrrr yccc yirr yori yoro yory yoyo yyyy