func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     long long int n, x, rev;     cin >> n;     while (n % 10 == 0) n = n / 10;     rev = 0;     x = n;     while (x > 0) {       rev = rev * 10 + x % 10;       x = x / 10;     }     if (rev == n)       cout <<  YES ;     else       cout <<  NO ;   }   