input: def reverse_list(list): 
      """Reverses the given list.
      >>> reverse_list([1,2,3,4,5])
      [5, 4, 3, 2, 1]
      >>> reverse_list(['a','b','c'])
      ['c', 'b', 'a']
      """
      return list[::-1]
output:     return list[::-1]