input: def rewrite_using_comprehension(input_list: list) -> list:
      """ Rewrite the given Python code by introducing list comprehensions.
      >>> rewrite_using_comprehension([])
      [i for i in range(1, 21) if i % 2 == 0]
      """
output:     return [i for i in range(1, 21) if i % 2 == 0]