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.
A1, A2, A3 = (int(i) for i in input().split())

x3 = 4*((A1*A3)/A2)**.5
y3 = 4*((A1*A2)/A3)**.5
z3 = 4*((A2*A3)/A1)**.5

print(x3+y3+z3)