codeforces#P784D. Touchy-Feely Palindromes

Touchy-Feely Palindromes

Description

The only line of the input contains a string of digits. The length of the string is between 1 and 10, inclusive.

Output "Yes" or "No".

Input

The only line of the input contains a string of digits. The length of the string is between 1 and 10, inclusive.

Output

Output "Yes" or "No".

Samples

373

Yes

121

No

436

Yes