func_code_string: #include <bits/stdc++.h>   using namespace std;   bool is_pal(string a) {     string b = a;     reverse(b.begin(), b.end());     return b == a;   }   int main() {     ios_base::sync_with_stdio(false);     cin.tie(0);     ;     string second;     cin >> second;     for (int i = 0; i < second.size(); i++) {       string temp = second;       for (char j =  a ; j <=  z ; j++) {         if (j == second[i]) continue;         temp[i] = j;         if (is_pal(temp)) {           cout <<  YES n ;           return 0;         }       }     }     cout <<  NO n ;     return 0;   }   