input: Write a function in Python to print the Fibonacci series.
  
  ### Input:
  
  
  ### Output:
  def printFibonacciSeries(n): 
    
      # Taking 1st two fibonacci nubers as 0 and 1 
      f1 = 0
      f2 = 1
      print(f1, f2, end = " ") 
    
      for i in range(2, n): 
          next = f1 + f2 
          print(next, end = " ") 
    
          # update values 
          f1 = f2 
          f2 = next
  
  assert printFibonacciSeries(5)=="0 1 1 2 3 "
  assert printFibonacciSeries(8)=="0 1 1 2 3 5 8 13 "
  assert printFibonacciSeries(1)=="0 1 "
  assert printFibonacciSeries(2)=="0 1 "
  assert printFibonacciSeries(0)==""
output: def printFibonacciSeries(n): 
      if n <= 0:
          return ""
      f1 = 0
      f2 = 1
      result = f"{f1} {f2} "
      for i in range(2, n): 
          next = f1 + f2 
          result += f"{next} "
          f1 = f2 
          f2 = next
      return result.strip()