using System;

public class Test
{
	
	public static void Main()
	{
		// your code goes here
		int[][] a = new int[5][];
		Array.Fill(a,new int[5]);
		printMatrix(a);
		a[1][2]=3;
		printMatrix(a);
	}
	
	private static void printMatrix(int[][]arr)
	{
		for (int i = 0; i < arr.GetLength(0); i++)
        {
            for (int j = 0; j < arr[i].GetLength(0); j++)
            {
                Console.Write(arr[i][j]+" ");
            }
            Console.WriteLine();
        }
        Console.WriteLine();
	}
	
}