using System;

public class Program

{

    public static void Main()

    {

        Console.Write("number : ");

        int a = Int32.Parse(Console.ReadLine());

        int [,] array = new int[a,a];   

        Console.WriteLine();

        for (int i = 1; i < a; i++){

            for(int x = 1 ; x < a ; x++){

                array[i,x]=(i+1)*(x+1);

                Console.Write(array[i,x] +" ");

            }

            Console.WriteLine();

        }

    }   

}