#!/usr/bin/env python

# coding=utf-8

#

# Python Script

#

# Copyleft © Manoel Vilela

#

#

from functools import reduce

from sys import version_info

if version_info >= (3, 0):

xrange = range

"""

Sum square difference

Problem 6

The sum of the squares of the first ten natural numbers is,

12 + 22 + ... + 102 = 385

The square of the sum of the first ten natural numbers is,

(1 + 2 + ... + 10)2 = 552 = 3025

Hence the difference between the sum of the squares

of the first ten natural numbers and the square of the

sum is 3025 − 385 = 2640.

Find the difference between the sum of the squares of

the first one hundred natural numbers and the square of the sum

"""

print(reduce(lambda x, y: x + y, xrange(1, 101)) ** 2 - reduce(lambda x, y: x + y ** 2, xrange(1, 101)))