input: Write a function to create a Python program that prints "Hello World!" five times. The function should not take any input and should directly print the output.
  
  def print_hello_world():
      for x in range(5):
          print("Hello World!")
  
  assert print_hello_world() is None
output: def print_hello_world():
      for x in range(5):
          print("Hello World!")