func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     string a, b, c;     cin >> a >> b >> c;     if (a[0] == c[2] && a[1] == c[1] && a[2] == c[0] && b[0] == b[2])       cout <<  YES  << endl;     else       cout <<  NO  << endl;   }   