func_code_string: #include <bits/stdc++.h>   using namespace std;   signed main() {     long long t;     cin >> t;     while (t--) {       long long n;       cin >> n;       long long k;       vector<long long> ans;       if (n > 3) {         if (n % 2 == 1)           k = n - 1;         else           k = n;         while (k > 0) {           if (k == 4) ans.push_back(2);           if (k == 2) ans.push_back(4);           if (k != 4 && k != 2) ans.push_back(k);           k -= 2;         }         k = 1;         while (k <= n) {           ans.push_back(k);           k += 2;         }         for (auto u : ans) cout << u <<    ;         cout << endl;       } else {         cout <<  -1  << endl;       }     }     return 0;   }   