input: 
  def Fibonacci(n: int) -> None:
      """ Generate and display a Fibonacci sequence of the first n numbers.
      >>> Fibonacci(1)
      0
      >>> Fibonacci(2)
      0
      1
      >>> Fibonacci(5)
      0
      1
      1
      2
      3
      """
      if n <= 0:
          return
      a, b = 0, 1
      for _ in range(n):
          print(a)
          a, b = b, a + b
  
  # Example usage:
  Fibonacci(10)
  
output:     if n <= 0:
          return
      a, b = 0, 1
      for _ in range(n):
          print(a)
          a, b = b, a + b