func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int t, a1, a2, b1, b2, max1, max2;     cin >> t;     while (t > 0) {       cin >> a1 >> b1;       cin >> a2 >> b2;       max1 = max(a1, b1);       max2 = max(a2, b2);       if (max1 == max2) {         int min1, min2;         min1 = min(a1, b1);         min2 = min(a2, b2);         if ((min1 + min2) == max1) {           cout <<  Yes  << endl;         } else {           cout <<  No  << endl;         }       } else {         cout <<  No  << endl;       }       t--;     }     return 0;   }   