#include using namespace std; #define pb push_back typedef long long ll; const ll INF = 1000000000000000000ll; const ll MOD = 1000000007ll; const double EPS = 1e-8; bool dp[5001][32769]; int main(void) { //ios_base::sync_with_stdio(false); //cin.tie(0); int n; cin >> n; vector a; a.pb(0); for(int i=0; i> t; a.pb(t); } dp[0][0] = true; for(int i=1; i<=n; i++){ for(int j=0; j<=32767; j++){ dp[i][j] = dp[i-1][j] || dp[i-1][(j xor a[i])]; } } /* for(int i=0; i<=n; i++){ for(int j=0; j<=10; j++){ printf("%d ", dp[i][j]); } puts(""); } */ ll ans = 0; for(int j=0; j<=32767; j++){ if(dp[n][j]) ans++; } cout << ans << endl; return 0; }