func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     long long t;     cin >> t;     while (t--) {       long long n;       cin >> n;       long long k = (n + 1) / 2;       k = k - 1;       long long ans = 0;       for (long long i = 1; i <= k; ++i) {         ans += 8 * i * i;       }       cout << ans << endl;     }     return 0;   }   