public class Palindrome
{
  static boolean isPalindrome(String s){
    // terminating condition
    if(s.length() < 2)
      return true;
  
    // check the 1st and the last chars
    if(s.charAt(0) == s.charAt(s.length()-1))
      return isPalindrome(s.substring(1, s.length()-1));
    else
      return false;
  }
  
  public static void main(String args[]){
    if(args.length == 1)
      System.out.println(args[0]+" is a palindrome? "+isPalindrome(args[0]));
  }
}