Problem Statement

You are given a three-digit positive integer $N$.
Determine whether $N$ is a palindromic number.
Here, a palindromic number is an integer that reads the same backward as forward in decimal notation.

Constraints

• $100≤N≤999$
• $N$ is an integer.

Input

Input is given from Standard Input in the following format:

$N$

Output

If $N$ is a palindromic number, print Yes; otherwise, print No.

Input 1

575

Output 1

Yes

$N=575$ is also $575$ when read backward, so it is a palindromic number. You should print Yes.

Input 2

123

Output 2

No

$N=123$ becomes $321$ when read backward, so it is not a palindromic number. You should print No.

Input 3

812

Output 3

No