// https://www.hackerrank.com/challenges/java-string-reverse/problem

import java.util.Scanner;

public class JavaStringReverse {

public static void main(String[] args) {

Scanner scanner = new Scanner(System.in);

String string = scanner.nextLine();

scanner.close();

if (string.equals(reverse(string))) {

System.out.println("Yes");

} else {

System.out.println("No");

}

}

private static String reverse(String string) {

StringBuffer accumulator = new StringBuffer(string);

accumulator.reverse();

return accumulator.toString();

}

}