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();
    StringBuffer s = new StringBuffer(A);
    s.reverse();
    if (A.equals(s.toString())) {
        System.out.println("Yes");
    } else {
        System.out.println("No");
    }

    /* Enter your code here. Print output to STDOUT. */

}

}

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

public class Main {

public static void main(String[] args) {

    Scanner sc=new Scanner(System.in);

    String A=sc.nextLine();
            char[] letra = new char[A.length()];
            char[] letra2 = new char[A.length()];

    for(int i=0; i<A.length(); i++){

        letra[i] = A.charAt(i);
    }

    int j = 0;
    for (int i = A.length() - 1; i >= 0; i--) {
        letra2[j] = A.charAt(i);
        j++;
    }

    boolean esPalindromo = true;

    for (int i = 0; i < A.length(); i++) {
        if (letra[i] != letra2[i]) {
            esPalindromo = false;
            break; 
        }
    }

    if (esPalindromo) {
        System.out.println("Yes");
    } else {
        System.out.println("No");
    }



    sc.close();

}

}

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();
boolean isPalindrome = true;
int length = A.length();
for (int i = 0; i < length / 2; i++) {
    if (A.charAt(i) != A.charAt(length - 1 - i)) {
        isPalindrome = false;
        break;
    }
}
System.out.println(isPalindrome ? "Yes" : "No");
sc.close();

} }

String res =""; for(int i = A.length()-1;i >=0; i--){ res = res+(A.charAt(i)); } if (res.equals(A)){ System.out.println("Yes"); } else System.out.println("No");

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();
    String rev=null;
    sc.close();
    for(int i=A.length()-1; i>0;i--){
        rev = rev+A.charAt(i);
    }
    if(rev==A){
        System.out.println("yes");
    }
}

}