'''Question: 
Write a Python program to calculate the difference between the squared sum of first n natural numbers and the sum of squared first n natural numbers.(default value of number=2).
'''

# Python code: 

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))



'''Output sample: 
5434

'''