using System;

​

public class Program

{

    public static void Main()

    {

        int n = Convert.ToInt32(Console.ReadLine());

        //Console.Write("1"+n+"1");

        int q = n;

        int count = 0;

        while (q > 0)

        {

            q /= 10;

            count++;

        }

​

        int i = Convert.ToInt32(Math.Pow(10, count));

        int p = i + n;

        int m = p * 10 + 1;

        Console.WriteLine(m);

    }

}