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

static public class Program
{
    static public void Main()
    {
        var n = readInteger().Validate(x => 1 <= x && x <= 100000);
        var a = readLong(n).ValidateArray(x => 1 <= x && x <= 1L << 60);
        readEOF();
        var b = new List<long>[65];
        for (int i = 0; i < 65; i++)
            b[i] = new List<long>();
        foreach (var x in a)
        {
            var v = x;
            for (int i = 0; i < 64 && 0 < v; i++)
            {
                if (((v >> i) & 1) == 0)
                    continue;
                if (b[i].Count > 0)
                    v ^= b[i][0];
                else
                {
                    b[i].Add(v);
                    break;
                }
            }
        }
        Console.WriteLine(1L << b.Count(x => x.Count > 0));

    }

    static int readInteger()
    {
        var s = Console.ReadLine();
        return int.Parse(s);
    }
    static long[] readLong(int n, params char[] sep)
    {
        var s = Console.ReadLine().Split(sep);
        if (s.Length != n)
            throw new Exception(string.Format("invalid input, expected{0} actual{1}", n, s.Length));
        var ret = new long[n];
        for (int i = 0; i < n; i++)
            ret[i] = int.Parse(s[i]);
        return ret;
    }
    static void readEOF()
    {
        if (Console.In.Peek() >= 0)
            throw new Exception("invalid input too long input file");
    }

}
static public class Ex
{
    static public T Validate<T>(this T input, Func<T, bool> f)
    {
        if (!f(input))
            throw new Exception("invalid input");
        return input;
    }
    static public T[] ValidateArray<T>(this T[] input, Func<T, bool> f)
    {
        foreach (var x in input)
            if (!f(x))
                throw new Exception("invalid input");
        return input;
    }
}