input: Write a function to generate and display a Fibonacci sequence of the first n numbers. The function should take an integer n as input and print each number in the sequence from the first to the (n-1)th number.
  assert Fibonacci(10)
  assert Fibonacci(1)
  assert Fibonacci(5)
  assert Fibonacci(0)
  assert Fibonacci(3)
output: def Fibonacci(n):
      if n <= 0:
          return
      a, b = 0, 1
      for _ in range(n):
          print(a)
          a, b = b, a + b