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

namespace foryuki
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] a = ConvertStringArrayToIntArray(Console.ReadLine().Split());
            double rr = Math.Sqrt(Math.Pow(a[0], 2) + Math.Pow(a[1], 2)) * 2;
            if (rr == Math.Floor(rr)) rr += 1;
            Console.WriteLine((int)Math.Ceiling(rr));
        }


        //-------------------------------------------------------------

        static int[] ConvertStringArrayToIntArray(string[] array)
        {
            return Array.ConvertAll(array, str => int.Parse(str));
        }

        static List<int> ConvertStringArrayToIntList(string[] str)
        {
            var list = new List<int>();
            foreach (var c in str)
            {
                list.Add(int.Parse(c));
            }
            return list;
        }
    }
}