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.
mas = list(map(int, input().split()))
mas = mas + [mas[1], mas[2]]
res = 0
for i in range(3):
    res += 4 * (mas[i] / mas[i + 1] * mas[i + 2]) ** 0.5
print(round(res))