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.
# Description of the problem can be found at http://codeforces.com/problemset/problem/224/A

import math

v1, v2, v3 = map(int, input().split())

print(int(4*(math.sqrt(v1*v2 / v3) + math.sqrt(v2*v3 / v1) + math.sqrt(v1*v3 / v2))))
	 	 			 				 	  	   		   		 	 	