old_contents: #! /usr/bin/env python
  
  num = 3
  print num
  
  
new_contents: #! /usr/bin/env python
  
  num = 3
  print num
  
  # This is great!
  # Now, assign the value 88 to the variable "blanket".
  
  # blanket = ??
  # print blanket
  
subject: Add comments about blanket variable.