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

namespace ConsoleApplication6
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] A = Console.ReadLine().Split();
            int x = int.Parse(A[0]);
            x = Math.Abs(x);
            int y = int.Parse(A[1]);
            y = Math.Abs(y);
            int ans = 0;

            double r = Math.Sqrt(x*x + y*y);
            double D = r * 2;
            D = Math.Ceiling(D);      
            
            if(r*2 == D)
            {
                D += 1;
            }

            ans = (int)D;
            Console.WriteLine(ans);
        }
    }
}