def sum_difference(n=2):  
    sum_of_squares = 0  
    square_of_sum = 0  
    for num in range(1, n+1):  
        sum_of_squares += num * num  
        square_of_sum += num  
  
    square_of_sum = square_of_sum ** 2  
  
    return square_of_sum - sum_of_squares  
  
  
print(sum_difference(12))