input: def string_to_list(s1: str, s2: str) -> list:
      """
      Given two strings, this function returns a list of all the words in both strings.
  
      >>> string_to_list("I want to make a difference", "The journey to success is long")
      ['I', 'want', 'to', 'make', 'a', 'difference', 'The', 'journey', 'to', 'success', 'is', 'long']
      """
      s1_list = s1.split()
      s2_list = s2.split()
      output_list = s1_list + s2_list
      return output_list
output:     s1_list = s1.split()
      s2_list = s2.split()
      output_list = s1_list + s2_list
      return output_list