input: 
  from typing import List, Tuple
  
  def sort_words_by_length_and_alphabet(words: List[str]) -> str:
      """
      Sorts the words in the given list by their length in decreasing order.
      If two words have the same length, they are sorted in alphabetical order.
      
      >>> sort_words_by_length_and_alphabet(['This', 'is', 'the', 'string', 'which', 'is', 'to', 'be', 'sorted'])
      'string which sorted This is is to be the'
      """
      words_with_length = [(len(word), word) for word in words]
      words_with_length.sort(key=lambda x: (-x[0], x[1]))
      return " ".join([word for length, word in words_with_length])
  
output:     words_with_length = [(len(word), word) for word in words]
      words_with_length.sort(key=lambda x: (-x[0], x[1]))
      return " ".join([word for length, word in words_with_length])