input: from typing import List
  
  def reverse_combine_strings(str1: str, str2: str) -> str:
      """
      Combine two strings and return the result reversed.
      
      >>> reverse_combine_strings("Hello ", "world!")
      '!dlrow olleH'
      >>> reverse_combine_strings("Python ", "programming")
      'gnimmargorp nohtyP'
      """
      combined = str1 + str2
      return combined[::-1]
output:     combined = str1 + str2
      return combined[::-1]