func_code_string: #include <bits/stdc++.h>   using namespace std;   const int maxn = 1e5 + 10, mod = 1e9 + 7, INF = 0x3f3f3f3f;   int main() {     int T;     cin >> T;     while (T--) {       int b, p, f, h, c;       cin >> b >> p >> f >> h >> c;       int ans = 0;       for (int i = 0; i <= p; ++i) {         int num1 = min(i, b / 2);         int num2 = min(f, (b - num1 * 2) / 2);         ans = max(ans, num1 * h + num2 * c);       }       cout << ans << endl;     }     return 0;   }   