code: def remove_hairs(inp, hairs=HAIRS):
      
      while inp and inp[-1] in hairs:
          inp = inp[:-1]
  
      while inp and inp[0] in hairs:
          inp = inp[1:]
  
      return inp
docs: Remove "special" characters from beginning and the end of the `inp`. For
      example ``,a-sd,-/`` -> ``a-sd``.
  
      Args:
          inp (str): Input string.
          hairs (str): List of characters which should be removed. See
                       :attr:`HAIRS` for details.
  
      Returns:
          str: Cleaned string.