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())

l1 = (a*c/b)**0.5*4
l2 = (a*b/c)**0.5*4
l3 = (b*c/a)**0.5*4
print(int(l1+l2+l3))
 	 	 		 		 		     			 	 			 			