llrn llrn lrln rlln lrln rlln llnr llnr lnlr nllr lnlr nllr lrnl rlnl lnrl nlrl rnll nrll lrnl rlnl lnrl nlrl rnll nrll
Note: these 'words' (valid or invalid) are all the permutations of the word llrn. These words are obtained by scrambling the letters in llrn.