c-cd cccc ccci cccv ccdc ccdi ccdr ccgc ccic ccid ccii ccir cciv ccoc ccod ccrc ccrg ccri ccvi ccvo cd-r cddr cdic cdii cdio cdiv cdvd cdvi cgcc cgcg cgro cicc cici cico cicr cidc cidg cidi cidr cigi ciid ciii cior circ ciri ciro cirr civc civo coco codd codi cogi cogo coir cood cor- corc cord corg cori coro corr covo crcc crcr crdc cric crig croc crod croo cror cvcc cvid cvii cvrd cvrg cvrr dccc dcci dccv dcgo dcii dcio dciv dcvd dcvg dcvi dddd ddoc ddrc dici dico didi dido digg digi digo diii diiv dioc dior dird dirr divd divi divo doci doco dod- dodd dodg dodi dodo dog- dogg dogi dogo doid doig dood door dorc dord dori doro dorr dovi dric drod drog dvdr dvi- dvii dvir dvor gc-c gccc gcic gcii gciv gcov gcrg gdci gdor gdov gdrc gggg gicr gidc gidd gidi gido gigg gigi gigo giog gioi gird girg giri giro girr gocr godi godo gogi gogo good goog gooi goor gord gorg gori goro gorr govi grcc grdc gric grid grig groc grod grog groi groo gror grov grrr gvvv i-go iccc icci icco iccr icdc icdd icgc icoc icod icor icrc icrr idcr iddo idgo idic idid idig idio idir idoc idog idrc idro idvd igcc igoo igor igri iicd iiii iiio iioi iioo iirc iocg ioci iod- iodd iodo ioii ioio iooi iooo iorg iori ircc ircd ircg irdc irdo iri- iric irid irig irio iroc irod irov irrc irri ivdr ivic ivig ivod ivor occc occi ocro ocrr odci oddd oddi odic odio odir odoo odor ogdc oggi ogod ogog ogoi ogri ogro oici oido oigo oiii oocr oodi ooid oooo oord orci orco ordo orgo ori- oric orid orig orio oro- oror orri orro orvr ovi- ovid ovo- ovod ovoo rccc rcdc rcgc rcic rcid rcrd rcrg rcvr rdio rdoc ricc rico ridc ridd ridi rido rigg rigi rigo riri rivo rocc roco rodd rodi rodo rogg rogi rogo roid roig roio roir rood roog rooi roor rorc rori roro rovi rovo rrrr rv-c vcci vdcc vdio vgcc vic- vici vico vidi vido vigo vigr viii virc virg viri viro virr vivi vivo vodo voic void voio voir vooc voog voor vor- vord vori voro vrci vrdi vrio vroc vvog vvvv