class xor_base():
    def __init__(self):
        self.K = 60
        self._list = [0] * self.K
        self.cnt = 0
        
    def min_all(self, x):
        for i in range(self.K - 1, -1, -1):
            if (x >> i) & 1:
                x ^= self._list[i]
        return x
    
    def add(self, x):
        x = self.min_all(x)
        if x == 0:
            return 
        for i in range(self.K - 1, -1, -1):
            if (x >> i) & 1:
                for j in range(self.K):
                    if (self._list[j] >> i) & 1:
                        self._list[j] ^= x
                self._list[i] = x
                self.cnt += 1
                return
            
    def get(self, x):
        now = 0
        for i in range(self.K):
            if (x >> i) & 1:
                now ^= self._list[i]
        return now
    
    def __len__(self):
        return self.cnt              
        
    def __str__(self):
        return f"{self._list}, len = {self.cnt}"
    
    

N = int(input())
A = list(map(int, input().split()))

B = xor_base()
for a in A:
    B.add(a)
    
print(2**len(B))