import java.util.Scanner;

public class No98 {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        double x = sc.nextDouble();
        double y = sc.nextDouble();

        double hypo = Math.sqrt(Math.pow(x, 2) + Math.pow(y, 2));
        hypo = Math.ceil((hypo * 2) + 0.5d);

        System.out.println((int) hypo);

        sc.close();
    }

}