import java.util.Scanner;

public class Yukicoder98 {

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

		if (Math.hypot(x, y) % 1 == 0)
			System.out.println(1 + 2 * (int) Math.ceil(Math.hypot(x, y)));
		else
			System.out.println(2 * (int) Math.ceil(Math.hypot(x, y)));

	}
}