using System;

public class Program

{

    public static void Main()

    {

             Console.WriteLine(" Verilmish 2 olculu massivin perimetr boyu (yeni qiraq xetleri boyu) elemtleri cemi");

             int row = 4;

            Console.Write("Enter the length of arrays row :{0}", row + "\n");

​

            int column = 4;

            Console.Write("Enter the length of arrays column :{0}", column + "\n");

​

            int[,] array = new int[row, column];

​

            for (int i = 0; i < row; i++)

            {

                for (int j = 0; j < column; j++)

                {

                    Console.Write("array [" + i + "," + j + "]= ");

                    array[i, j] = Convert.ToInt32(Console.ReadLine());

                }

            }

            int allelements = 0;

​

            for (int i = 0; i < row; i++)

            {

                for (int j = 0; j < column; j++)

                {

                    allelements += array[i, j];

​

                }

            }

            int indoor=0;

​

            for (int i = 1; i < row - 1; i++)

            {

                for (int j = 1; j < column - 1; j++)

                {

                    indoor += array[i, j];

                }

​

            }

​

           int vergeelementsum = allelements -indoor ;

            Console.WriteLine(vergeelementsum);

            Console.ReadKey();

    }

}