using System;

public class Program

{

    public static void Main()

    {

        int N = int.Parse(Console.ReadLine());

        for (int i = 1; i <= N; i++)

        {

            Console.Write("\n" + i + " ");

            for (int j = i+1; j <= N+i; j++)

            {

                Console.Write(j + " ");

            }

            Console.WriteLine();

        }

    }

}

​

//Write a program that reads from the console a positive integer number

//N (N < 20) and prints a matrix of numbers as on the figures below: