using System;

public class Program

{

    public static void Main()

    {

        string inputLine = Console.ReadLine().ToLower().Replace(" ", "");

        if (Palindrome(inputLine) == inputLine)

            {

            Console.WriteLine("Эта строка - палиндром");

            }

        else

            {

            Console.WriteLine("Эта строка - не палиндром");

            }

    }

    public static string Palindrome(string inputLine)

    {

        string backLine = "";

        for (int charIndex = inputLine.Length - 1; charIndex >= 0; charIndex--)

        {

            backLine += inputLine[charIndex];

        }

        return backLine;

    }

}