cccc ccci cccv ccgc ccic ccii ccir cciv ccoc ccrc ccrg ccri ccvi ccvo cgcc cgcg cgro cicc cici cico cicr cigi ciii cior circ ciri ciro cirr civc civo coco cogi cogo coir cor- corc corg cori coro corr covo crcc crcr cric crig croc croo cror cvcc cvii cvrg cvrr gc-c gccc gcic gcii gciv gcov gcrg gggg gicr gigg gigi gigo giog gioi girg giri giro girr gocr gogi gogo goog gooi goor gorg gori goro gorr govi grcc gric grig groc grog groi groo gror grov grrr gvvv i-go iccc icci icco iccr icgc icoc icor icrc icrr igcc igoo igor igri iiii iiio iioi iioo iirc iocg ioci ioii ioio iooi iooo iorg iori ircc ircg iri- iric irig irio iroc irov irrc irri ivic ivig ivor occc occi ocro ocrr oggi ogog ogoi ogri ogro oici oigo oiii oocr oooo orci orco orgo ori- oric orig orio oro- oror orri orro orvr ovi- ovo- ovoo rccc rcgc rcic rcrg rcvr ricc rico rigg rigi rigo riri rivo rocc roco rogg rogi rogo roig roio roir roog rooi roor rorc rori roro rovi rovo rrrr rv-c vcci vgcc vic- vici vico vigo vigr viii virc virg viri viro virr vivi vivo voic voio voir vooc voog voor vor- vori voro vrci vrio vroc vvog vvvv