import sys; input = sys.stdin.buffer.readline
sys.setrecursionlimit(10**7)
from collections import defaultdict
con = 10 ** 9 + 7; INF = float("inf")

def getlist():
	return list(map(int, input().split()))

#処理内容
def main():
	N = int(input())
	A = getlist()
	bases = []
	for i in range(N):
		a = A[i]
		for x in bases:
			a = min(a, a ^ x)
		if a != 0:
			bases.append(a)

	ans = 2 ** (len(bases))
	print(ans)

if __name__ == '__main__':
	main()