using static System.Math;
using System;

public class Hello
{
    static void Main()
    {
        string[] line = Console.ReadLine().Trim().Split(' ');
        var a = int.Parse(line[0]);
        var b = int.Parse(line[1]);
        var ans = 0;
        for (int i = a; i <= b; i++)
            ans = Max(ans, getAns(i));
        Console.WriteLine(ans);
    }
    static int getAns(int r)
    {
        var count = 0;
        for (int i = 0; i * i <= r; i++)
            for (int j = i + 1; j * j <= r; j++)
                if (i * i + j * j == r)
                    if (i == 0 | j == 0) count += 4;
                    else count += 8;
        return count;
    }
}