sbor na nai golemi vuv kvadrat

using System;
using System.Linq;
using System.Collections.Generic;
public class Program
{
    public static void Main()
    {
        int[,] matrix = {

        { 0, 2, 4, 0, 9, 5 },

        { 7, 1, 3, 3, 2, 1 },

        { 1, 3, 9, 8, 5, 6 },

        { 4, 6, 7, 9, 1, 0 }

            };
        int bestSum = int.MinValue;
        int bestcol = 0;
        int bestrow = 0;

        for(int row = 0; row < matrix.GetLength(0) - 1; row++)
            {
                for(int col = 0; col < matrix.GetLength(1) - 1; col++)
                {
                    int sum = matrix[row, col] + matrix[row + 1, col] +matrix[row, col+1] + matrix[row + 1, col + 1];
                    if (sum> bestSum)
                    {
                        bestSum = sum;
                        bestrow= row;
                        bestcol=col;
                    }
                }
            }
             Console.WriteLine("The best platform is:");
             Console.WriteLine("  {0} {1}",matrix[bestrow, bestcol],matrix[bestrow, bestcol + 1]);
             Console.WriteLine("  {0} {1}", matrix[bestrow + 1, bestcol], matrix[bestrow + 1, bestcol + 1]);Console.WriteLine("The maximal sum is: {0}", bestSum);
             Console.WriteLine("The maximal sum is: {0}", bestSum);
    }
}