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.
The first and the single line contains three space-separated integers — the areas of the parallelepiped's faces. The area's values are positive ( &gt; 0) and do not exceed 10<sup class="upper-index">4</sup>. It is guaranteed that there exists at least one parallelepiped that satisfies the problem statement.
# -*- coding: utf-8 -*-
"""
Created on Thu Apr 30 23:19:30 2020

@author: Administrator 
"""
from math import sqrt
ab,bc,ca = map(int, input().split())

prod = ab * bc * ca

abc = int(sqrt(prod))

a = abc//bc
b = ab//a
c = ca//a

print(4*(a+b+c))

