using System.Numerics;

public class Program
{
    public static void Main()
    {

        BigInteger num = BigInteger.Parse(Console.ReadLine() ?? string.Empty);
        //string[] str = (Console.ReadLine() ?? string.Empty).Trim().Split(' ');
        //string str = Console.ReadLine() ?? string.Empty;


        if (num < 0)
        {
            Console.WriteLine(0);
            return;
        }
        Console.WriteLine(num / 100);


    }
}