old_contents: import sys
  
  def Factorializer(number):
  	if number == 1:
  		return 1
  	else: 
  		return number*Factorializer(number-1)
  print(Factorializer(int(sys.argv[1])))
  
new_contents: #Christian Ng
  import sys
  
  def Factorializer(number):
  	if number == 1:
  		return 1
  	else: 
  		return number*Factorializer(number-1)
  print(Factorializer(int(sys.argv[1])))
  
subject: Update Factorializer.py