Palindrome

import java.util.Scanner;

public class Palindrom
{
  public static void main(String[] args)
  {
    Scanner in=new Scanner(System.in);
    String str=in.nextLine();
    int len=str.length() - 1;
    int i = 0;
    while (i < len) {
      if (str.charAt(i) != str.charAt(len)) {
        System.out.println("Not a palindrome");
        return;
      }
      i++;
      len--;
    }
    System.out.println("It is a palindrome");
  }}