crqi rcqi cqri qcri rqci qrci criq rciq cirq icrq ricq ircq cqir qcir ciqr icqr qicr iqcr rqic qric riqc irqc qirc iqrc
Note: these 'words' (valid or invalid) are all the permutations of the word crqi. These words are obtained by scrambling the letters in crqi.