import java.math.BigInteger;
import java.util.Scanner;

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