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.
ab,bc,ca=[int(x) for x in input().split()]
a=((ab*ca)/bc)**0.5
b=((ab*bc)/ca)**0.5
c=((bc*ca)/ab)**0.5
print(int(4*(a+b+c)))