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

namespace YukiCoder
{
    class Program
    {
        static void Main(string[] args)
        {
            var v = Console.ReadLine().Split().Select(int.Parse).ToArray();
            var r = (int)(Math.Sqrt(v[0] * v[0] + v[1] * v[1]) * 2 + 1);
            Console.WriteLine(r);
            Console.ReadLine();
        }
    }
}