第17周周赛（大一） --A - Parallelepiped

A - Parallelepiped

Crawling in process...Crawling failedTime Limit:2000MS    Memory Limit:262144KB     64bit IO Format:%I64d & %I64u

SubmitStatus 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;}