import java.util.Scanner;

public class Main {
    public static void main(String args[]) {
        Scanner scnr = new Scanner(System.in);
        String input;
        String inputNoSpaces;
        int i;
        int begin;
        int end;
        int middle;

        input = scnr.nextLine();
        inputNoSpaces = input.replaceAll(" ", "");
        begin = 0;
        end = inputNoSpaces.length() - 1;
        middle = (begin + end) / 2;
        for (i = begin; i <= middle; i++) {
            if (inputNoSpaces.charAt(begin) == inputNoSpaces.charAt(end)) {
                begin++;
                end--;
             } else {
                break;
            }
        }
        if (i == middle + 1) {
            System.out.println(input + " is a palindrome");
        } else {
            System.out.println(input + "is not a palidrome");
        }
    }
}