Feely Palindromes

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".

Examples

Input

373

Output

Yes

Input

121

Output

No

Input

436

Output

Yes

inputFormat

Input

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

outputFormat

Output

Output "Yes" or "No".

Examples

Input

373

Output

Yes

Input

121

Output

No

Input

436

Output

Yes

样例

436

YES