using System;

public class Program

{

    public static void Main()

    {

        public static class Program

    {

        public static void Main()

        {

            int[,] matrix = new int[3,4];

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

            {

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

                {

                    matrix[i,j] = i*10 + j;

                }

            }

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

            {

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

                {

                    Console.Write("{0} ", matrix[i, j]);

                }

                Console.WriteLine("\n");

            }

        }

    }

    }

}