def sum_of_squares(limit):
	result = 0
	for i in range(1, limit+1):
		result += i*i
	return result

def square_of_sums(limit):
	result = 0
	for i in range(1, limit+1):
		result += i
	return result*result

print abs(sum_of_squares(100) - square_of_sums(100))