func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     ios::sync_with_stdio(false);     long long q;     cin >> q;     while (q--) {       long long l1, r1, l2, r2;       cin >> l1 >> r1 >> l2 >> r2;       if (l1 == l2) {         cout << l1 <<     << r2 <<   n ;         continue;       }       if (l1 == r2) {         cout << l1 <<     << l2 <<   n ;         continue;       }       if (r1 == l2) {         cout << r1 <<     << r2 <<   n ;         continue;       }       if (r2 == r1) {         cout << r1 <<     << l2 <<   n ;         continue;       }       cout << l1 <<     << l2 <<   n ;     }   }   