input: def print_fibonacci_series(n: int): 
      """Print the Fibonacci series up to a given number n.
      >>> print_fibonacci_series(5)
      0 1 1 2 3
      >>> print_fibonacci_series(10)
      0 1 1 2 3 5 8 13 21 34
      """
      a = 0
      b = 1
      if n < 0: 
          print("Incorrect input") 
          return
      if n >= 0: 
          print(a, end=" ")
      if n >= 1: 
          print(b, end=" ")
      for i in range(2, n + 1): 
          c = a + b 
          a = b 
          b = c 
          print(c, end=" ") 
      print()
output:     a = 0
      b = 1
      if n < 0: 
          print("Incorrect input") 
          return
      if n >= 0: 
          print(a, end=" ")
      if n >= 1: 
          print(b, end=" ")
      for i in range(2, n + 1): 
          c = a + b 
          a = b 
          b = c 
          print(c, end=" ") 
      print()