import java.util.*;
public class draw{
	public static void main(String... args){
		Scanner scan = new Scanner(System.in);
		int x = scan.nextInt(),y = scan.nextInt();
		int xx = x*x,yy = y*y;
		double r= Math.sqrt(xx+yy)*2;
		System.out.println((int)r+1);
	}
}