charr hcarr cahrr achrr hacrr ahcrr chrar hcrar crhar rchar hrcar rhcar carhr acrhr crahr rcahr archr rachr harcr ahrcr hracr rhacr arhcr rahcr charr hcarr cahrr achrr hacrr ahcrr chrar hcrar crhar rchar hrcar rhcar carhr acrhr crahr rcahr archr rachr harcr ahrcr hracr rhacr arhcr rahcr chrra hcrra crhra rchra hrcra rhcra chrra hcrra crhra rchra hrcra rhcra crrha rcrha crrha rcrha rrcha rrcha hrrca rhrca hrrca rhrca rrhca rrhca carrh acrrh crarh rcarh arcrh racrh carrh acrrh crarh rcarh arcrh racrh crrah rcrah crrah rcrah rrcah rrcah arrch rarch arrch rarch rrach rrach harrc ahrrc hrarc rharc arhrc rahrc harrc ahrrc hrarc rharc arhrc rahrc hrrac rhrac hrrac rhrac rrhac rrhac arrhc rarhc arrhc rarhc rrahc rrahc
Note: these 'words' (valid or invalid) are all the permutations of the word charr. These words are obtained by scrambling the letters in charr.