import java.util.*;
import java.util.stream.Stream;
import java.time.*;
import java.time.format.*;

public class No98 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        double x = sc.nextDouble();
        double y = sc.nextDouble(); 
        System.out.println((int)(Math.sqrt(Math.pow(x,2) + Math.pow(y,2)) * 2 + 1));
	}
}