using System;
using System.Linq;

class No98
{
    static void Main()
    {
        var num = Console.ReadLine().Split(' ').Select(x => Int32.Parse(x)).ToArray();
        var length = num[0] * num[0] + num[1] * num[1];
        Console.WriteLine(Math.Floor((Math.Sqrt(length))*2 + 1));
    }
}