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

namespace Yukicoder
{
    class Program
    {
        static void Main(string[] args)
        {
            var line = Console.ReadLine().Split(' ').Select(int.Parse).ToArray();
            var x = line[0];
            var y = line[1];
            
            for (int i = 0; i < 200000000; i++)
            {
                if (i > Math.Sqrt(x*x + y*y)*2)
                {
                    Console.WriteLine(i);
                    return;
                }
            }
        }
    }
}