第17周周赛（大一） --A - Parallelepiped

A - Parallelepiped

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Submit Status Practice CodeForces 224A

Description

You've got a rectangular parallelepiped with integer edge lengths. You know the areas of its three faces that have a common vertex. Your task is to find the sum of lengths of all 12 edges of this parallelepiped.

Input

The first and the single line contains three space-separated integers — the areas of the parallelepiped's faces. The area's values are positive ( > 0) and do not exceed 10⁴. It is guaranteed that there exists at least one parallelepiped that satisfies the problem statement.

Output

Print a single number — the sum of all edges of the parallelepiped.

Sample Input

Input

1 1 1

Output

12

Input

4 6 6

Output

28

由组成一个角的三个面，计算长方形的面积。首先计算三边边长 ， 边长a，b，c 三边面积x，y，z  记a*b=x ； a*c=y ; b*c = z ;

可以计算出三边

#include<stdio.h>
#include <math.h>
int main()
{
	int a, b , c , i , x , y , z , max = 0;
	scanf("%d %d %d", &a, &b, &c);
	x = sqrt(a*c/b);
	y = a / x ;
	z = b / y ;
	printf("%d\n", 4*(x+y+z));
	return 0;
}