old_contents: __author__ = 'mike.lyons'
  
  print "Hello World!"
  
  while True:
      x = raw_input("Enter any number: ")
      y = raw_input("Enter another number: ")
  
      try:
          x = int(x)
          y = int(y)
      except ValueError:
          x = 0
          y = 0
  
      print "Sum: " + str(x+y)
      print "Product: " + str(x*y)
      print "Square of 2nd number: " + str(y**2)
  
      user_exit = raw_input("Exit? (y/n): ")
      if user_exit == 'y' or user_exit == 'Y':
          break
  print "Goodbye World!"
  
new_contents: __author__ = 'mike.lyons'
  
  print "Hello World!"
  
  while True:
      x = raw_input("Enter any number: ")
      y = raw_input("Enter another number: ")
  
      try:
          x = int(x)
          y = int(y)
      except ValueError:
          x = 0
          y = 0
  
      print "Sum: " + str(x+y)
      print "Product: " + str(x*y)
      print "Quotient: " + str(x/y)
      print "Square of 2nd number: " + str(y**2)
  
      user_exit = raw_input("Exit? (y/n): ")
      if user_exit == 'y' or user_exit == 'Y':
          break
  print "Goodbye World!"
  
subject: add support for quotient