#!/usr/bin/env python3
# %%
import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines


# %%
import numpy as np

# %%


def row_transform_over_F2(A, highest=60):
    for k in range(highest, -1, -1):
        I = np.where((A >> k) == 1)[0]
        if len(I) == 0:
            continue
        i = I[0]
        x = A[i]
        A ^= ((A >> k) & 1) * x
        A[i] = x


# %%
N = int(readline())
A = np.array(read().split(), np.int64)


# %%
row_transform_over_F2(A, highest=61)


# %%
dim = np.count_nonzero(A)
print(2 ** dim)