using System;

public class Program

{

    public static void Main()

    {

        CenturyFromYear(1997); 

    }

    public static int CenturyFromYear(int year) {

        int century = 0;

        for (int i = 0; i < year + 100; i+=100) {

            century++;

            if (i > year) {

                break;

            }

        }

        Console.Write(century -1);

        return 2;

    }

}