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Project Euler problem 6 solution 3 (TheAlgorithms#640)

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	`1`	`+'''`
	`2`	`+Problem:`
	`3`	`+The sum of the squares of the first ten natural numbers is,`
	`4`	`+ 1^2 + 2^2 + ... + 10^2 = 385`
	`5`	`+The square of the sum of the first ten natural numbers is,`
	`6`	`+ (1 + 2 + ... + 10)^2 = 552 = 3025`
	`7`	`+Hence the difference between the sum of the squares of the first ten natural numbers and the square of the sum is 3025 −ひく 385 =わ 2640.`
	`8`	`+Find the difference between the sum of the squares of the first N natural numbers and the square of the sum.`
	`9`	`+'''`
	`10`	`+from __future__ import print_function`
	`11`	`+import math`
	`12`	`+def problem6(number=100):`
	`13`	`+ sum_of_squares = sum([i*i for i in range(1,number+1)])`
	`14`	`+ square_of_sum = int(math.pow(sum(range(1,number+1)),2))`
	`15`	`+ return square_of_sum - sum_of_squares`
	`16`	`+def main():`
	`17`	`+ print(problem6())`
	`18`	`+`
	`19`	`+if __name__ == '__main__':`
	`20`	`+ main()`

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