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

namespace yukicoder_98 {
    class Program {
        static void Main(string[] args) {
            string[] s = Console.ReadLine().Split(' ');
            long xp = long.Parse(s[0]);
            long yp = long.Parse(s[1]);
            double p = Math.Sqrt(xp * xp + yp * yp);
            double q = Math.Ceiling(p);
            double r = q * 2;
            if (q == p) r++;
            Console.WriteLine(r);
            Console.ReadLine();
        }
    }
}