2-Dimensional Array Max and Min

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 } };
            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();
            }
            int max = arr[0, 0];
            int min = arr[0, 0];
            for (int i = 0; i < arr.GetLength(0); i++)
            {
                for (int j = 0; j < arr.GetLength(1); j++)
                {

                    if (arr[i, j] > max)
                    {
                        max = arr[i, j];

                    }
                    if (arr[i, j] < min)
                    {
                        min = arr[i, j];
                    }
                }
            }
            Console.WriteLine("Max= " + max);
            Console.WriteLine("Min= " + min );
        }
    }
}