2-Dimensional Array Increment

using System;

namespace Matrix
{
    class Program
    {
        static void Main(string[] args)
        {

            MatrixMethod();
        }
        static void MatrixMethod()
        {
            int[,] arr = { { 21, 19, 113, 55 }, { 33, 15, 60, 7 } };
            Console.WriteLine("Before ");
            for (int i = 0; i < arr.GetLength(0); i++)
            {
                for (int j = 0; j < arr.GetLength(1); j++)
                {
                    Console.Write("{0,4}", arr[i, j]);
                }
                Console.WriteLine();
            }

            Console.WriteLine("After");
            for (int i = 0; i < arr.GetLength(0); i++)
            {
                for (int j = arr.GetLength(1) - 1; j > 0; j--)
                {
                    for (int k = 0; k < j; k++)
                    {
                        if (arr[i, k] > arr[i, k + 1])
                        {
                            int temp = arr[i, k];
                            arr[i, k] = arr[i, k + 1];
                            arr[i, k + 1] = temp;
                        }
                    }
                }
            }
            for (int i = 0; i < arr.GetLength(0); i++)
            {
                for (int j = 0; j < arr.GetLength(1); j++)
                {
                    Console.Write("{0,4}", arr[i, j]);
                }
                Console.WriteLine();
            }
        }
    }
}