import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int a = scanner.nextInt(), b = scanner.nextInt();
        a -= b;
        int count = 0;
        while (a > 0) {
            a -= 100;
            count++;
        }
        System.out.println(count);
    }
}