c-cor ccccc cccii cciii ccxii ceci- cecie ceco- cecri ceere ceoce ceoor cerc- cerce cerci cerco cerec cerer ceric cerie cerio cero- ceroc cerre cerro cicer circe circo cirex ciric cirie cirio cirr- cirri cirro co-co cocc- cocce cocci cocco coceo cocio cocir coice coire coiro cooee cooer cooie coore corce core- coree corer corex corie corio coro- coroi corre corri coxie crece creer creio creo- crice crier crio- croce croci croco croix crooe crore ecori eeeee eerie eieio eirie eorre erere erice erier eriic erio- erixx eroor erore error ex-ic execx exore iceci icici icier iecee ieiri ierei ieroe iiiee iiiii ioooi ioooo iorio ircii irece irico irori occii ocice ocoee ocree ocrie oeco- oeiro oo-er oocre ooioo ooooo oorie oreco oreo- oreoi orere orero orexo orice oroco oroer oroix oxxio r-co- rcirc recce recco recio reece reere reice reorx rere- reree reric rerir rexer ricci ricco ricer ririe rixoi ro-ro rocco rocio rocor roero rooer roore rorer roric roxie roxio xciii xeric xero- xerox xexex xorro xoxox xxiii xxxii xxxix