input: Write a function to generate and display a Fibonacci sequence of the first n numbers. The function should return the nth Fibonacci number.
  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+1):
      print(Fibonacci(i))
  
  assert Fibonacci(1)==0
  assert Fibonacci(2)==1
  assert Fibonacci(5)==3
  assert Fibonacci(10)==34
output: def Fibonacci(n):
      if n==1:
          return 0
      elif n==2:
          return 1
      else:
          return Fibonacci(n-1)+Fibonacci(n-2)