using System;
using System.Linq;
using System.Collections.Generic;

class Program
{
    static void Main(string[] args)
    {
        string[] xy = Console.ReadLine().Split();

        double x = Math.Abs(double.Parse(xy[0]));
        double y = Math.Abs(double.Parse(xy[1]));

        double z = Math.Sqrt(Math.Pow(x, 2) + Math.Pow(y, 2));

        Console.WriteLine(Math.Floor(z + z + 1));
        Console.ReadLine();
    }
}