import java.io.*;
import java.util.*;


public class Main_yukicoder184 {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        Printer pr = new Printer(System.out);

        int n = sc.nextInt();

        long[] a = new long[n];
        for (int i = 0; i < n; i++) {
        	a[i] = sc.nextLong();
        }

        int ret = 0;
        for (int i = 0; i <= 60; i++) {
        	long mask = 0x1L << i;

        	boolean flag = false;
        	for (int j = i; j < n; j++) {
        		if (!flag && (a[j] & mask) != 0) {
        			flag = true;
        			long tmp = a[j];
        			a[j] = a[i];
        			a[i] = tmp;
        			ret++;
        		} else if (flag && (a[j] & mask) != 0) {
        			a[j] ^= a[i];
        		}
        	}
        }

        pr.println(0x1L << ret);

        pr.close();
        sc.close();
    }

	@SuppressWarnings("unused")
	private static class Scanner {
		BufferedReader br;
		Iterator<String> it;

		Scanner (InputStream in) {
			br = new BufferedReader(new InputStreamReader(in));
		}

		String next() throws RuntimeException  {
			try {
				if (it == null || !it.hasNext()) {
					it = Arrays.asList(br.readLine().split(" ")).iterator();
				}
				return it.next();
			} catch (IOException e) {
				throw new IllegalStateException();
			}
		}

		int nextInt() throws RuntimeException {
			return Integer.parseInt(next());
		}

		long nextLong() throws RuntimeException {
			return Long.parseLong(next());
		}

		float nextFloat() throws RuntimeException {
			return Float.parseFloat(next());
		}

		double nextDouble() throws RuntimeException {
			return Double.parseDouble(next());
		}

		void close() {
			try {
				br.close();
			} catch (IOException e) {
//				throw new IllegalStateException();
			}
		}
	}

	private static class Printer extends PrintWriter {
		Printer(PrintStream out) {
			super(out);
		}
	}
}