import java.util.*;

public class Main {
    public static void main(String[] args ) throws Exception {
        Scanner sc = new Scanner(System.in);
        int N = sc.nextInt();
        
        if(N % 100 == 0){
            int M = N / 100;
            System.out.println(M);
        }else{
            System.out.println(0);
        }
    }
}