diff --git a/cpp/hhcn.cpp b/cpp/hhcn.cpp
index b713e73..2d85623 100644
--- a/cpp/hhcn.cpp
+++ b/cpp/hhcn.cpp
@@ -4,7 +4,10 @@ using namespace std;
 int main() {
     long long a, b, c;
     cin >> a >> b >> c;
+    long long x = sqrt(a * b / c);
+    long long y = sqrt(b * c / a);
+    long long z = sqrt(c * a / b);
 
-    cout << 4 * (a * b + b * c + c * a) / sqrt(a * b * c);
+    cout << 4 * (x + y + z);
     return 0;
 }