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 104. It is guaranteed that there exists at least one parallelepiped that satisfies the problem statement.

Print a single number - the sum of all edges of the parallelepiped.

In the first sample the parallelepiped has sizes 1 \times 1 \times 1, in the second one- 2 \times 2 \times 3.