using System;

public class Hello
{
    static void Main()
    {
        var n = int.Parse(Console.ReadLine().Trim());
        getAns(n);
    }
    static void getAns (int n)
    {
        if (n == 0) { Console.WriteLine(1); return; }
        Console.WriteLine("010" + new string('0', n - 1));
    }
}