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 the sequence.
  def Fibonacci(n):
      if n==1:
          return 0
      elif n==2:
          return 1
      else:
          return Fibonacci(n-1)+Fibonacci(n-2)
  
  n = 10
  for i in range(1, n):
      print(Fibonacci(i))
  
  assert Fibonacci(5)==3
  assert Fibonacci(7)==8
  assert Fibonacci(10)==34
  assert Fibonacci(1)==0
  assert Fibonacci(2)==1
output: def Fibonacci(n):
      if n <= 0:
          return
      a, b = 0, 1
      for _ in range(n):
          print(a)
          a, b = b, a + b