func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int m, n;     int out;     cin >> m >> n;     if (m >= n && m >= 2) {       out = (m / 2) * n;       if (m % 2 && n / 2) {         out += (n / 2);       }     } else if (n > m && n >= 2) {       out = (n / 2) * m;       if (n % 2 && m / 2) {         out += (m / 2);       }     } else {       out = 0;     }     cout << out;     return 0;   }   