func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n, m, s, i, j;     cin >> n >> m >> s;     long long ans = 0;     for (i = 1; i <= n; i += 2) {       for (j = 1; j <= m; j += 2) {         long long cnt = (n - i + 1) * (m - j + 1);         long long tmp = 0;         if (i * j == s) {           tmp = (i + 1) / 2 * (j + 1) / 2;           ans += cnt * (tmp * 2 - 1);         }         if (i * j > s) {           int x, ss = i * j;           if ((ss - s) % 4) continue;           int res = (ss - s) / 4;           for (int k = 1; k <= j / 2; k++) {             if (res % k) continue;             x = res / k;             if (x > i / 2) continue;             tmp += 2;           }           ans += cnt * tmp;         }       }     }     cout << ans << endl;     return 0;   }   