import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines

import numpy as np

N = int(readline())
A = np.array(read().split(),np.int32)

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

row_transform_over_F2(A, 15)
n = np.count_nonzero(A)
answer = 2 ** n
print(answer)