vxxc xvxc vxxc xvxc xxvc xxvc vxcx xvcx vcxx cvxx xcvx cxvx vxcx xvcx vcxx cvxx xcvx cxvx xxcv xxcv xcxv cxxv xcxv cxxv
Note: these 'words' (valid or invalid) are all the permutations of the word vxxc. These words are obtained by scrambling the letters in vxxc.