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