old_contents: __author__ = 'mike.lyons'
  
  print "Hello World!"
  x = raw_input("Enter any number: ")
  y = raw_input("Enter another number: ")
  
  try:
      x = float(x)
      y = float(y)
  except ValueError:
      x = 0.0
      y = 0.0
  
  print x+y
  print x/2
  print y**2
  
new_contents: __author__ = 'mike.lyons'
  
  print "Hello World!"
  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 x+y
  print x/2
  print y**2
  
subject: change from float to int