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.
# https://codeforces.com/problemset/problem/224/A
# Time O(1) | Aux Space O(1)

# Note: Had to derive expression (line 9) using pen/paper

import math
x, y, z = [int(num) for num in input().split()]

print(int(4*(x*y + y*z + z*x)/math.sqrt(x*y*z)))