#include<bits/stdc++.h>
using namespace std;

using ll = long long;
using pi = pair<int, int>;
using vpi = vector<pi>;
using vi = vector<int>;
using vll = vector<long long>;
using mpii = map<int, int>;
using mpll = map<ll, ll>;
using db = long double;

#define pb push_back 
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define lb lower_bound
#define ub upper_bound

const int MOD = (int)1e9 + 7;
const db PI = acos((db)-1);
const int dx[4]{1, 0, -1, 0};
const int dy[4]{0, 1, 0, -1};

//pretty printing
template<typename K, typename V>
void printm(const map<K, V> &mp) {
  cerr << "{" << endl;
  for (auto p : mp) {
    cerr << "  { " << p.first << " : " << p.second << " }\n";
  }
  cerr << "}" << endl;
}
template<typename T>
void printv(const vector<T> &v) {
  cerr << "[";
  for (int i = 0; i < v.size(); i++) {
    if (i == v.size() - 1) {
      cerr << v[i];
    } else {
      cerr << v[i] << ", ";
    }
  }
  cerr << "]\n";
}

template<typename T>
void printvv(const vector<vector<T>> &v) {
  cerr << "[\n";
  for (auto &vec : v) {
    cout << "  ";
    printv(vec);
  }
  cerr << "]\n";
}
void print() {
  cerr << "\n";
}

template<typename T, typename... TS>
void print(T val, TS... vals) {
  cerr << val << " ";
  print(vals...);
}


/* stuff you should look for:
  ---------------------------
   * special cases (n=1?)
   * int overflow, array bounds
   * do smth instead of nothing and stay organized
   * WRITE STUFF DOWN
   * DON'T GET STUCK ON ONE APPROACH
 */

void solve() {
  ll n;
  cin >> n;
  ll sum = (n * (n + 1)) / 2;
  vi v1 = {3, 4, 1, 2};
  vi v2 = {1, 2, 4, 6, 3, 5};
  if (sum % n == 0) {
    cout << -1 << '\n';
  } else {
    vi ans(n);
    if (n == 2) {
      cout << 1 << " " << 2 << '\n';
    }
    else if (n == 4) {
      for (auto x : v1) {
        cout << x << ' ';
      }
      cout << '\n';
    } else if (n == 6) {
      for (auto x : v2) {
        cout << x << ' ';
      }
      cout << '\n';
    } else {
      for (int i = 7; i <= n; i++) {
        if (i % 2 == 1) {
          v2.push_back(i + 1);
        } else {
          v2.push_back(i - 1);
        }
      }
      for (auto x : v2) {
        cout << x << ' ';
      }
      cout << '\n';
    }
  }

}

int main () {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  int tt;
  cin >> tt;
  while(tt--) {
    solve();
  }
}