import java.io.; import java.util.;

public class Solution {

public static void main(String[] args) {

    Scanner sc=new Scanner(System.in);
    String A=sc.next();
    char[] cr = new char[A.length()];
    char[] cr1 = new char[A.length()];
    for(int i = 0;i < A.length(); i++){
        cr[i] = A.charAt(i);
    }    

    for(int i = 0; i < A.length();i++){
        cr1[A.length() - 1 - i] = cr[i];
    }    

    if(Arrays.equals(cr, cr1)){
        System.out.println("Yes");
    }else{
        System.out.println("No");
    }


}

}