using System;
using System.IO;
using System.Linq;
using System.Text;
using System.Collections.Generic;
using System.Diagnostics;
using System.Numerics;
using Enu = System.Linq.Enumerable;
using System.Collections;

class Program
{
    public void Solve()
    {
        int N = Reader.Int();
        var A = Enu.Range(0, N).Select(i => Reader.Long()).Distinct().ToArray();
        N = A.Length;
        var M = new long[N][];

        for (int i = 0; i < N; i++)
            M[i] = new[] { A[i] };
        int rank = GaussJordan(M, 61);
        long ans = 1L << rank;
        Console.WriteLine(ans);
    }

    static int GaussJordan(long[][] M, int W)
    {
        int H = M.Length;
        int rank = 0;
        for (int c = 0; c < W; c++)
        {
            int i = Array.FindIndex(M, rank, r => (r[c >> 6] >> (c & 63) & 1) == 1);
            if (i < 0) continue;
            var t = M[rank]; M[rank] = M[i]; M[i] = t;
            for (i = rank + 1; i < H; i++)
                if ((M[i][c >> 6] >> (c & 63) & 1) == 1)
                    for (int j = 0; j < M[j].Length; j++)
                        M[i][j] ^= M[rank][j];
            rank++;
        }
        return rank;
    }
}


class Entry { static void Main() { new Program().Solve(); } }
class Reader
{
    private static TextReader reader = Console.In;
    private static readonly char[] separator = { ' ' };
    private static readonly StringSplitOptions op = StringSplitOptions.RemoveEmptyEntries;
    private static string[] A = new string[0];
    private static int i;
    private static void Init() { A = new string[0]; }
    public static void Set(TextReader r) { reader = r; Init(); }
    public static void Set(string file) { reader = new StreamReader(file); Init(); }
    public static bool HasNext() { return CheckNext(); }
    public static string String() { return Next(); }
    public static int Int() { return int.Parse(Next()); }
    public static long Long() { return long.Parse(Next()); }
    public static double Double() { return double.Parse(Next()); }
    public static int[] IntLine() { return Array.ConvertAll(Split(Line()), int.Parse); }
    public static int[] IntArray(int N) { return Enu.Range(0, N).Select(i => Int()).ToArray(); }
    public static int[][] IntTable(int H) { return Enu.Range(0, H).Select(i => IntLine()).ToArray(); }
    public static string[] StringArray(int N) { return Enu.Range(0, N).Select(i => Line()).ToArray(); }
    public static string Line() { return reader.ReadLine().Trim(); }
    private static string[] Split(string s) { return s.Split(separator, op); }
    private static string Next() { CheckNext(); return A[i++]; }
    private static bool CheckNext()
    {
        if (i < A.Length) return true;
        string line = reader.ReadLine();
        if (line == null) return false;
        if (line == "") return CheckNext();
        A = Split(line);
        i = 0;
        return true;
    }
}