#nullable enable

#region
var _input = Array.Empty<string>();
var _iter = 0;
string String()
{
    while (_iter >= _input.Length) (_input, _iter) = (Console.ReadLine()!.Split(' '), 0);
    return _input[_iter++];
}
T I<T>() where T : IParsable<T> => T.Parse(String(), null);
#endregion

var l = I<int>();
var r = I<int>();
var ans = 0;
if (l <= 295 && r >= 296) ans++;
if (l <= 416 && r >= 417) ans++;
Console.WriteLine(ans);