02. Fun with Matrices

using System;
using System.Data;
using System.Linq;
class Program
{
    static void Main()
    {
        double start = double.Parse(Console.ReadLine());
        double step = double.Parse(Console.ReadLine());


        double[,] matrix = new double[4, 4];         //Fill matrix

        for (int row = 0; row < 4; row++)
        {
            for (int col = 0; col < 4; col++)
            {
                matrix[row, col] = start;
                //Console.Write(matrix[row,col]+ " ");
                start = start + step;
            }
            //Console.WriteLine();
        }
        string[] command = Console.ReadLine().Split();

        while (command[0] != "Game")
        {
            int row = int.Parse(command[0]);
            int col = int.Parse(command[1]);
            string order = command[2];
            double num = double.Parse(command[3]);

            switch (order)
            {
                case "multiply": matrix[row, col] *= num; break;
                case "sum": matrix[row, col] += num; break;
                case "power": matrix[row, col] = Math.Pow(matrix[row, col], num); break;
            }
            command = Console.ReadLine().Split();
        }
        //for (int row = 0; row < 4; row++)
        //{
        //    for (int col = 0; col < 4; col++)
        //    {
        //        Console.Write(matrix[row, col] + " ");
        //    }
        //    Console.WriteLine();
        //}
        double maxSum = double.MinValue;
        int index = 0;
        string maxType = "ROW";

        for (int row = 0; row < 4; row++)
        {
            double sum = matrix[row, 0] + matrix[row, 1] + matrix[row, 2] + matrix[row, 3];
            if (sum > maxSum)
            {
                maxSum = sum;
                index = row;
            }
        }
        for (int col = 0; col < 4; col++)
        {
            double sum = matrix[0, col] + matrix[1, col] + matrix[2, col] + matrix[3, col];
            if (sum > maxSum)
            {
                maxSum = sum;
                index = col;
                maxType = "COLUMN";
            }

        }
        double leftDiagonalSum = matrix[0, 0] + matrix[1, 1] + matrix[2, 2] + matrix[3, 3];

        if (leftDiagonalSum > maxSum)
        {
            maxSum = leftDiagonalSum;
            maxType = "LEFT-DIAGONAL";
        }
        double rightDiagonalSum = matrix[3, 0] + matrix[2, 1] + matrix[1, 2] + matrix[0, 3];
        if (rightDiagonalSum > maxSum)
        {
            maxSum = rightDiagonalSum;
            maxType = "RIGHT-DIAGONAL";
        }
        if (maxType == "ROW" || maxType == "COLUMN")
        {
            Console.WriteLine("{0}[{1}] = {2:f2}", maxType, index, maxSum);
        }
        else
        {
            Console.WriteLine("{0} = {1:f2}", maxType,maxSum);
        }

    }
}