using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication79
{
    class Program
    {
        static void Main(string[] args)
        {
            var validNumber = int.Parse(Console.ReadLine());

            while (validNumber <= 0 || validNumber >= 100)
            {

                validNumber = int.Parse(Console.ReadLine());
            }

                Console.WriteLine(validNumber);

        }
    }
}