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

class Program
{
    static void Main(string[] args)
    {
        var input = Console.ReadLine().Split().Select(int.Parse).ToArray();
        var X = input[0];
        var Y = input[1];
        
        var shizen = 0;
        var fushizen = X + Y;
        var diff = X + Y;
        for (int i = 1; i <= Math.Min(X, Y); i++)
        {
            shizen += i * 2;
            fushizen -= i * 2;
            diff = Math.Min(Math.Abs(fushizen - shizen), diff);
        }
        Console.WriteLine(diff);
    }
}