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.
a, b, c = map(int, input().split())

x = a * c / b
x = x ** 0.5

y = a * b / c
y = y ** 0.5

z = b * c / a
z = z ** 0.5

h = x + y + z
print(h * 4)
  	 	  		 	  	 	   				 	  			