using System;

public class Program

{

    public static void Main()

    {

int[,] matrix =

{

    {1, 2, 3, 4},

                {5, 6, 7, 8},};

for (int row = 0; row < matrix.GetLength(0); row++)

{

      for (int col = 0; col < matrix.GetLength(1); col++)

      {

      Console.Write(matrix[row, col]);

      }

      Console.WriteLine();

}

    }

}

​