haffs ahffs hfafs fhafs afhfs fahfs haffs ahffs hfafs fhafs afhfs fahfs hffas fhfas hffas fhfas ffhas ffhas affhs fafhs affhs fafhs ffahs ffahs hafsf ahfsf hfasf fhasf afhsf fahsf hasff ahsff hsaff shaff ashff sahff hfsaf fhsaf hsfaf shfaf fshaf sfhaf afshf fashf asfhf safhf fsahf sfahf hafsf ahfsf hfasf fhasf afhsf fahsf hasff ahsff hsaff shaff ashff sahff hfsaf fhsaf hsfaf shfaf fshaf sfhaf afshf fashf asfhf safhf fsahf sfahf hffsa fhfsa hffsa fhfsa ffhsa ffhsa hfsfa fhsfa hsffa shffa fshfa sfhfa hfsfa fhsfa hsffa shffa fshfa sfhfa ffsha ffsha fsfha sffha fsfha sffha affsh fafsh affsh fafsh ffash ffash afsfh fasfh asffh saffh fsafh sfafh afsfh fasfh asffh saffh fsafh sfafh ffsah ffsah fsfah sffah fsfah sffah
Note: these 'words' (valid or invalid) are all the permutations of the word haffs. These words are obtained by scrambling the letters in haffs.