/******************************************************************************
Welcome to GDB Online.
GDB online is an online compiler and debugger tool for C, C++, Python, Java, PHP, Ruby, Perl,
C#, VB, Swift, Pascal, Fortran, Haskell, Objective-C, Assembly, HTML, CSS, JS, SQLite, Prolog.
Code, Compile, Run and Debug online from anywhere in world.
*******************************************************************************/
import java.io.*;
import java.util.*;
public class Main
{
public static void main(String[] args) {
Scanner sc=new Scanner(System.in);
String A=sc.next();
StringBuilder sb = new StringBuilder(A);
sb = sb.reverse();
if(A.equalsIgnoreCase(sb.toString())){
System.out.println("Yes");
}else{
System.out.println("No");
}
}
}
