func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int t;     cin >> t;     while (t--) {       int a, b, c, d;       cin >> a >> b >> c >> d;       if (a > b) {         if (a == c) {           if (b + d == a) {             cout <<  Yes n ;           } else {             cout <<  NO n ;           }         } else if (a == d) {           if (c + b == a) {             cout <<  Yes n ;           } else {             cout <<  No n ;           }         } else {           cout <<  No n ;         }       } else if (b > a) {         if (b == c) {           if (a + d == b) {             cout <<  Yes n ;           } else {             cout <<  No n ;           }         } else if (b == d) {           if (c + a == b) {             cout <<  Yes n ;           } else {             cout <<  No n ;           }         } else {           cout <<  No n ;         }       } else {         cout <<  No n ;       }     }   }   