input: 
  from typing import List
  
  def create_square_dictionary(numbers: List[int]) -> dict:
      """ Creates a dictionary where each key is a number from the input list,
      and the corresponding value is the square of that number.
      >>> create_square_dictionary([1, 2, 3, 4, 5])
      {1: 1, 2: 4, 3: 9, 4: 16, 5: 25}
      >>> create_square_dictionary([10, 20, 30])
      {10: 100, 20: 400, 30: 900}
      """
  
output:     result = {}
      for num in numbers:
          result[num] = num ** 2
      return result