input: Write a function to create a dictionary where the keys are numbers between 1 and 15 (both included) and the values are the square of the keys. If the function is called with no input, it should return the dictionary with the specified keys and values.
  assert create_square_dict() == {1: 1, 2: 4, 3: 9, 4: 16, 5: 25, 6: 36, 7: 49, 8: 64, 9: 81, 10: 100, 11: 121, 12: 144, 13: 169, 14: 196, 15: 225}
output: def create_square_dict():
      return {i: i**2 for i in range(1, 16)}