func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int N = 0;     cin >> N;     for (int i = 0; i < N; i++) {       int length, height;       cin >> length >> height;       int pixL, pixH;       cin >> pixL >> pixH;       int ans = max(max(height - pixH - 1, pixH) * length,                     max(length - pixL - 1, pixL) * height);       cout << ans << endl;     }     return 0;   }   