using System;

public class Program

{

    public static void Main()

    {

        //Jesús Emiliano

        int x;//Position

        Console.WriteLine("2, 5, 11, 23, 47...");//*2+1

        Console.WriteLine("From the previous series, what position would you like to know?");

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

        for(int i=2;i<=1;i++)

        {

            Console.WriteLine();

        }

    }

}