import java.util.Scanner;

public class Main98 {
	public static void main(String[] args) {
		Main98 p = new Main98();
	}

	public Main98() {
		Scanner sc = new Scanner(System.in);
		int x = sc.nextInt();
		int y = sc.nextInt();
		solve(x, y);
	}

	public void solve(int x, int y) {
		double r = Math.ceil(Math.sqrt(x*x+y*y));
		if(x*x+y*y == (int)(r*r))
			r = 2*r+1;
		else
			r = 2*r;
		System.out.println((int)r);
	}

}