using System;

namespace _01.Resurrection
{
    public class Program
    {
        public static void Main()
        {
            var n = int.Parse(Console.ReadLine());

            for (int i = 0; i < n; i++)
            {
                var bodyLength = int.Parse(Console.ReadLine());
                var bodyWidth = double.Parse(Console.ReadLine());
                var wingLength = int.Parse(Console.ReadLine());
                long totalWingLength = 2 * wingLength;

                var reincarnateTime = Math.Pow(bodyLength, 2) * (bodyWidth + totalWingLength);
                Console.WriteLine($"{reincarnateTime}");
            }
        }
    }
}