#include<bits/stdc++.h>
using namespace std;

class Solution {
public:
    bool isPalindrome(int x) {
        long long revnum = 0;
        int dup = x;

        while(x>0){
            int ld = x % 10;
            revnum = (revnum * 10) + ld;
            x = x/10;
        }

        if ( dup==revnum) {
            return true;
        } else {
            return false;
        }

        return dup == revnum;
    }
};

int main () {
    Solution obj;
    
    int number;
    cin>>number;

    if(obj.isPalindrome(number)){
        cout << number << " is a palindrome." << endl;
    } else {
        cout << number << " is not a palindrome." << endl;
    }
    return 0;
    };