参考答案：

#include <iostream>

using namespace std;

int main() 
{
	int a, b, c;
	int l, w, h;

	cin >> a >> b >> c;
	l = sqrt(a * b / c);
	w = sqrt(a * c / b);
	h = sqrt(b * c / a);

	cout << 4 * (l + w + h) << endl;

	return 0;
}