import sys
input = lambda : sys.stdin.readline().rstrip()

sys.setrecursionlimit(2*10**5+10)
write = lambda x: sys.stdout.write(x+"\n")
debug = lambda x: sys.stderr.write(x+"\n")
writef = lambda x: print("{:.12f}".format(x))

class BaseF2:
    def  __init__(self, vs=None):
        """vs: list of vecotr in F2
        """
        self.base = []
        if vs is not None:
            for v in vs:
                tmp = v
                for u in self.base:
                    tmp = min(tmp, tmp^u)
                if tmp>0:
                    self.base.append(tmp)
    def dim(self):
        return len(self.base)
    def insert(self, v):
        # 次元が上がったかを返す
        for u in self.base:
            v = min(v, v^u)
            if v==0:
                return False
        self.base.append(v)
        return True
    def check(self, v):
        res = [] # vの作り方
        for u in self.base:
            nv = min(v, v^u)
            if nv<v:
                res.append(u)
                v = nv                    
        return v==0 #, res
    def clear(self):
        self.base = []
n = int(input())
a = list(map(int, input().split()))
base = BaseF2(a)
ans = pow(2, base.dim())
print(ans)