using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace dvumeren_masiv
{
    class Program
    {
        static  int [,] Submatrix(int[,] matrix)
        {
            int[,] res = new int[2, 2];
            int suma = 0;
            int result = 0;
            for (int i = 0; i < matrix.GetLength(0)-1; i+=1)
            {
                for (int j = 0; j < matrix.GetLength(1)-1; j += 1)
                {
                    suma = matrix[i, j] + matrix[i + 1, j] + matrix[i, j + 1] + matrix[i + 1, j + 1];
                    if (result < suma)
                    {
                        result = suma;
                        res[0, 0] = matrix[i, j];
                        res[0, 1] = matrix[i, j + 1];
                        res[1, 0] = matrix[i+1, j];
                        res[1, 1] = matrix[i+1, j+1];
                    }
                }
            }
            return res;
        }
        static void Main(string[] args)
        {
            //pod matrica s maksimalna suma na elementite
            Console.Write("Въведи редове=");
            int row = int.Parse(Console.ReadLine());
            Console.Write("въведи колони=");
            int col = int.Parse(Console.ReadLine());
            int[,] masiv = new int[row, col];
            for (int i = 0; i < row; i++)
            {
                for (int j = 0; j < col; j++)
                {
                    Console.Write("a[{0},{1}]=", i, j);
                    int el = int.Parse(Console.ReadLine());
                    masiv[i,j] = el;
                }
            }
            for (int i = 0; i < row; i++)
            {
                for (int j = 0; j < col; j++)
                {
                    Console.Write(masiv[i, j]+" ");
                }
                Console.WriteLine();
            }
            Console.WriteLine("Подматрицата е:");
            int[,]matrix = Submatrix(masiv);
            Console.Write(matrix[0, 0]+" ");
            Console.WriteLine(matrix[0, 1]);
            Console.Write(matrix[1, 0]+" ");
            Console.WriteLine(matrix[1, 1]);

            Console.WriteLine("Сумата на максималната подматрицата ={0}", matrix[0, 0] + matrix[0, 1] + matrix[1, 0] + matrix[1, 1]);


        }
    }
}