input: 
  def Fibonacci(n):
      """Generates a Fibonacci sequence of the first n numbers.
      
      >>> Fibonacci(5)
      [0, 1, 1, 2, 3]
      >>> Fibonacci(8)
      [0, 1, 1, 2, 3, 5, 8, 13]
      >>> Fibonacci(1)
      [0]
      """
      if n == 1:
          return [0]
      elif n == 2:
          return [0, 1]
      else:
          result = [0, 1]
          for i in range(2, n):
              result.append(result[-1] + result[-2])
          return result
  
output:     if n == 1:
          return [0]
      elif n == 2:
          return [0, 1]
      else:
          result = [0, 1]
          for i in range(2, n):
              result.append(result[-1] + result[-2])
          return result