using System;

public class Program

{

    public static void Main()

    {

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

        int sum = 0;

        for (int i = 1; i <= 2*a; i++) {

            if (i%2 != 0) {Console.WriteLine(i);

            sum += i;}

        }

            Console.WriteLine(sum);

    }

        }