#include using namespace std; #define int long long #define rep(i, n) for (int i = 0; i < (int) (n); i++) #define reps(i, n) for (int i = 1; i <= (int) (n); i++) #define all(a) (a).begin(), (a).end() #define uniq(a) (a).erase(unique(all(a)), (a).end()) #define bit(n) (1LL << (n)) #define dump(a) cerr << #a " = " << (a) << endl using vint = vector; using pint = pair; using vpint = vector; template using priority_queue_rev = priority_queue, greater>; constexpr double PI = 3.1415926535897932384626433832795028; constexpr int DY[9] = {0, 1, 0, -1, 1, 1, -1, -1, 0}; constexpr int DX[9] = {1, 0, -1, 0, 1, -1, -1, 1, 0}; int sign(int a) { return (a > 0) - (a < 0); } int cdiv(int a, int b) { return (a - 1 + b) / b; } template void fin(T a) { cout << a << endl; exit(0); } template T sq(T a) { return a * a; } template bool chmax(T &a, const U &b) { if (a < b) { a = b; return true; } return false; } template bool chmin(T &a, const U &b) { if (b < a) { a = b; return true; } return false; } template ostream &operator<<(ostream &os, const pair &a) { os << "(" << a.first << ", " << a.second << ")"; return os; } template ostream &operator<<(ostream &os, const vector &a) { os << "{"; for (auto itr = a.begin(); itr != a.end(); itr++) { os << *itr << (next(itr) != a.end() ? ", " : ""); } os << "}"; return os; } template ostream &operator<<(ostream &os, const deque &a) { os << "{"; for (auto itr = a.begin(); itr != a.end(); itr++) { os << *itr << (next(itr) != a.end() ? ", " : ""); } os << "}"; return os; } template ostream &operator<<(ostream &os, const set &a) { os << "{"; for (auto itr = a.begin(); itr != a.end(); itr++) { os << *itr << (next(itr) != a.end() ? ", " : ""); } os << "}"; return os; } template ostream &operator<<(ostream &os, const multiset &a) { os << "{"; for (auto itr = a.begin(); itr != a.end(); itr++) { os << *itr << (next(itr) != a.end() ? ", " : ""); } os << "}"; return os; } template ostream &operator<<(ostream &os, const map &a) { os << "{"; for (auto itr = a.begin(); itr != a.end(); itr++) { os << *itr << (next(itr) != a.end() ? ", " : ""); } os << "}"; return os; } struct setup { static constexpr int PREC = 20; setup() { cout << fixed << setprecision(PREC); cerr << fixed << setprecision(PREC); }; } setup; int64_t mod_log(int64_t a, int64_t b, int64_t p) { int64_t g = 1; for (int64_t i = p; i; i /= 2) { (g *= a) %= p; } g = __gcd(g, p); int64_t t = 1, c = 0; for (; t % g; c++) { if (t == b&&c) { return c; } (t *= a) %= p; } if (b % g) { return -1; } t /= g; b /= g; int64_t n = p / g, h = 0, gs = 1; for (; h * h < n; h++) { (gs *= a) %= n; } unordered_map bs; for (int64_t s = 0, e = b; s < h; bs[e] = ++s) { (e *= a) %= n; } for (int64_t s = 0, e = t; s < n;) { (e *= gs) %= n; s += h; if (bs.count(e)&&c+s-bs[e]) { return c + s - bs[e]; } } return -1; } signed main() { int T; cin >> T; while (T--) { int N; cin >> N; cout << mod_log(2, 1, 2 * N - 1) << endl; } }