old_contents: def sum_of_squares(n):
      return sum((i ** 2 for i in range(1, n+1)))
  
  def square_of_sum(n):
      return sum(range(1, n+1)) ** 2
  
  
new_contents: def sum_of_squares(n):
      return sum(i ** 2 for i in range(1, n+1))
  
  def square_of_sum(n):
      return sum(range(1, n+1)) ** 2
  
  
subject: Update 6