input:  
  from typing import List
  
  def combine_and_reverse(words: List[str]) -> str:
      """ Combines two strings and reverses the result.
      >>> combine_and_reverse(["Hello ", "world!"])
      '!dlrow olleH'
      >>> combine_and_reverse(["Python", " Programming"])
      'gnimmargorP nohtyP'
      """
  
output:     combined = ''.join(words)
      return combined[::-1]