#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include using namespace std; using ll = long long; constexpr int INF = 1001001001; constexpr int mod = 1000000007; // constexpr int mod = 998244353; template inline bool chmax(T& x, T y){ if(x < y){ x = y; return true; } return false; } template inline bool chmin(T& x, T y){ if(x > y){ x = y; return true; } return false; } struct OrthonormalBasis { const int n = 60; vector basis; OrthonormalBasis() : basis(n) {} void add(long long x){ x = get_min(x); if(x == 0) return; int msb = 63 - __builtin_clzll(x); for(int i = 0; i < n; ++i){ if(basis[i] >> msb & 1) basis[i] ^= x; } basis[msb] = x; } long long operator[](int i) { return basis[i]; } long long get_min(long long x){ for(int i = n - 1; i >= 0; --i){ if(x >> i & 1) x ^= basis[i]; } return x; } long long get_max(long long x){ for(int i = n - 1; i >= 0; --i){ if(~x >> i & 1) x ^= basis[i]; } return x; } }; int main(){ ios::sync_with_stdio(false); cin.tie(nullptr); int N; cin >> N; OrthonormalBasis vec; for(int i = 0; i < N; ++i){ ll A; cin >> A; vec.add(A); } int cnt = 0; for(int i = 0; i < 60; ++i){ cnt += vec[i] > 0; } cout << (1LL << cnt) << endl; return 0; }