using System;

namespace ConsoleApp30
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] row = Console.ReadLine().Split();

            int Xp = int.Parse(row[0]);
            int Yp = int.Parse(row[1]);

            double tmp = Math.Sqrt(Xp * Xp + Yp * Yp) * 2;
            int L = (int)Math.Ceiling(tmp);

            if (tmp == L)
            {
                L++;
            }

            Console.WriteLine(L);
        }
    }
}