milch imlch mlich lmich ilmch limch miclh imclh mcilh cmilh icmlh cimlh mlcih lmcih mclih cmlih lcmih clmih ilcmh licmh iclmh cilmh lcimh climh milhc imlhc mlihc lmihc ilmhc limhc mihlc imhlc mhilc hmilc ihmlc himlc mlhic lmhic mhlic hmlic lhmic hlmic ilhmc lihmc ihlmc hilmc lhimc hlimc michl imchl mcihl cmihl icmhl cimhl mihcl imhcl mhicl hmicl ihmcl himcl mchil cmhil mhcil hmcil chmil hcmil ichml cihml ihcml hicml chiml hciml mlchi lmchi mclhi cmlhi lcmhi clmhi mlhci lmhci mhlci hmlci lhmci hlmci mchli cmhli mhcli hmcli chmli hcmli lchmi clhmi lhcmi hlcmi chlmi hclmi ilchm lichm iclhm cilhm lcihm clihm ilhcm lihcm ihlcm hilcm lhicm hlicm ichlm cihlm ihclm hiclm chilm hcilm lchim clhim lhcim hlcim chlim hclim
Note: these 'words' (valid or invalid) are all the permutations of the word milch. These words are obtained by scrambling the letters in milch.