func_code_string: #include <bits/stdc++.h>   using namespace std;   char a[3][3];   int main() {     int p = 1;     for (int i = 0; i < 3; i++)       for (int j = 0; j < 3; j++) cin >> a[i][j];     for (int i = 0; i < 3; i++)       for (int j = 0; j < 3; j++) {         if (a[0][0] != a[2][2] || a[0][1] != a[2][1] || a[0][2] != a[2][0] ||             a[1][0] != a[1][2])           p = 0;       }     if (p)       cout <<  YES  << endl;     else       cout <<  NO  << endl;     return 0;   }   