import java.util.*;
import static java.lang.System.*;

public class Main {
	static Scanner sc = new Scanner(System.in);
	public static void main(String[] args) {
		double x = sc.nextDouble();
		double y = sc.nextDouble();
		double dist = GetDistance(0,0,x,y);
		int ans = (int)(dist*2+1);
		out.println(ans);
	}
	static double GetDistance (double x1, double y1, double x2, double y2) {
		double d = Math.sqrt((x2-x1)*(x2-x1)+(y2-y1)*(y2-y1));
		return d;
	}

}