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

a, b, c = [int(x) for x in input().split()]

a, b, c = ((a*b)/c) ** 0.5, ((a*c)/b) ** 0.5, ((b*c)/a) ** 0.5
print(int(4 * (a + b + c)))