calcn aclcn clacn lcacn alccn laccn cacln accln ccaln ccaln accln cacln clcan lccan cclan cclan lccan clcan alccn laccn aclcn calcn lcacn clacn calnc aclnc clanc lcanc alcnc lacnc canlc acnlc cnalc ncalc anclc naclc clnac lcnac cnlac nclac lncac nlcac alncc lancc anlcc nalcc lnacc nlacc cacnl accnl ccanl ccanl accnl cacnl cancl acncl cnacl ncacl anccl naccl ccnal ccnal cncal nccal cncal nccal acncl cancl anccl naccl cnacl ncacl clcna lccna cclna cclna lccna clcna clnca lcnca cnlca nclca lncca nlcca ccnla ccnla cncla nccla cncla nccla lcnca clnca lncca nlcca cnlca nclca alcnc lacnc aclnc calnc lcanc clanc alncc lancc anlcc nalcc lnacc nlacc acnlc canlc anclc naclc cnalc ncalc lcnac clnac lncac nlcac cnlac nclac
Note: these 'words' (valid or invalid) are all the permutations of the word calcn. These words are obtained by scrambling the letters in calcn.