func_code_string: #include <bits/stdc++.h>   using namespace std;   int hcf(long long a, long long b) {     if (b == 0) return a;     return hcf(b, a % b);   }   void solve() {     long long n;     cin >> n;     long long x = hcf(n + 1, 4 * n);     long long lcm = ((4 * n) * (n + 1)) / x;     cout << lcm / (n + 1) + 1;   }   int main() {     int t = 1;     cin >> t;     while (t--) {       solve();       cout <<   n ;     }     return 0;   }   