import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {
	public static void main(String[] args) {
		BufferedReader buff = new BufferedReader(new InputStreamReader(System.in));

		try {
			String[] box = buff.readLine().split(" ");

			int x = Integer.parseInt(box[0]);
			int y = Integer.parseInt(box[1]);

			int z = x * x + y * y;

			int i = 0;

			i = (int) Math.round(Math.sqrt(z));

			if(i * i <= z){
				i *= 2;
				++i;
			}else{
				i *= 2;
			}

			System.out.println(i);

		} catch (NumberFormatException e) {
			e.getStackTrace();
		} catch (IOException e) {
			e.getStackTrace();
		} catch (Exception e) {
			e.getStackTrace();
		}
	}
}