#include <iostream>
#include <string>
using namespace std;

class Natural_number {
public:
    unsigned int number;

    Natural_number(){number = 0;}
    Natural_number(const Natural_number &x);
    Natural_number(unsigned int tnumber) {
        if (tnumber == 0)
            number = 1;
        else
            number = tnumber;
    };
    ~Natural_number() {

    };
    void Palindrom() {
    /*  unsigned int temp = number;
        unsigned int reverse = 0;
        while (temp != 0) {
            reverse = reverse * 10 + temp % 10;
            temp /= 10;
        };
        if (reverse == number)
            return true;
        else return false;
    */
        int x = number;
        string s;
        bool flag = 0;
        while(x != 0){
            s += (char)(x % 10 - 48);
            x /= 10;
        }
        int j = s.size() - 1;
        for(int i=0; i<s.size()/2; i++){
            if (s[i] != s[j]){
                    flag = 1;
            }
            j --;
        }
        if (flag == 0){
            cout << "Palindrom" << endl;
        }else{
            cout << "NO" << endl;
        }
    }

};

int main(){
    int n;
    cout << "Enter number" << endl;
    cin >> n;
    Natural_number x(n);
    x.Palindrom();
  //  if (x.Palindrom()) cout << "YES" << endl;
    //    else cout << "NO" << endl;
    return 0;
}