func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     ios::sync_with_stdio(0);     cin.tie(0);     int t;     cin >> t;     while (t--) {       string a, b, c;       cin >> a >> b >> c;       bool ok = true;       for (int i = 0; i < a.size(); i++) {         ok &= a[i] == c[i] || b[i] == c[i];       }       cout << (ok ?  YES n  :  NO n );     }     return 0;   }   