---

using System;

class Program
{
    static void Main()
    {
        int[,] mas = {
            { 1, 2, 3 },
            { 4, 5, 6 },
            { 7, 8, 9 },
            { 10, 11, 12 }
        };

        int rows = mas.GetLength(0);
        int columns = mas.GetLength(1);

        for (int i = 0; i < rows; i++)
        {
            for (int j = 0; j < columns; j++)
            {
                Console.Write($"{mas[i, j]}\t");
            }

            Console.WriteLine();
        }
    }
}