import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Scanner;

/**
 * Built using CHelper plug-in
 * Actual solution is at the top
 */
public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        Yukicoder solver = new Yukicoder();
        solver.solve(1, in, out);
        out.close();
    }

    static class Yukicoder {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            int x = in.nextInt();
            int y = in.nextInt();
            double radius = Math.sqrt(Math.pow(x, 2) + Math.pow(y, 2)) * 2;

            int ans;
            for (int i = 0; ; i++) {
                if (radius < i) {
                    ans = i;
                    break;
                }
            }
            out.println(ans);
        }

    }
}