hilch ihlch hlich lhich ilhch lihch hiclh ihclh hcilh chilh ichlh cihlh hlcih lhcih hclih chlih lchih clhih ilchh lichh iclhh cilhh lcihh clihh hilhc ihlhc hlihc lhihc ilhhc lihhc hihlc ihhlc hhilc hhilc ihhlc hihlc hlhic lhhic hhlic hhlic lhhic hlhic ilhhc lihhc ihlhc hilhc lhihc hlihc hichl ihchl hcihl chihl ichhl cihhl hihcl ihhcl hhicl hhicl ihhcl hihcl hchil chhil hhcil hhcil chhil hchil ichhl cihhl ihchl hichl chihl hcihl hlchi lhchi hclhi chlhi lchhi clhhi hlhci lhhci hhlci hhlci lhhci hlhci hchli chhli hhcli hhcli chhli hchli lchhi clhhi lhchi hlchi chlhi hclhi ilchh lichh iclhh cilhh lcihh clihh ilhch lihch ihlch hilch lhich hlich ichlh cihlh ihclh hiclh chilh hcilh lchih clhih lhcih hlcih chlih hclih
Note: these 'words' (valid or invalid) are all the permutations of the word hilch. These words are obtained by scrambling the letters in hilch.