func_code_string: #include <bits/stdc++.h>   using namespace std;   long long int a1[200005];   long long int a2[29];   vector<long long int> v, v1;   bool p[100000008];   void seive() {     long long int i, j;     for (i = 1; i * i <= 100; i++) {       if (p[i] == false) {         for (j = i * i; j <= 100; j += i) {           p[j] = true;         }       }     }     v.push_back(2);     for (i = 3; i <= 100; i += 2) {       if (p[i] == false) {         v.push_back(i);         cout << i << endl;       }     }   }   int main() {     long long int n, d = 0, k = 0, c = 0, x = 0, i = 0, m, f = 0, j = 0, j1,                      sum = 0, s = 0, mx = 100000000000000000;     cin >> n;     while (n--) {       cin >> m;       k = 1;       sum = 0;       for (i = 3; i <= m; i += 2) {         d = (i * 2) + (i - 2) * 2;         sum += (d * k);         k++;       }       cout << sum << endl;     }     return 0;   }   