C. Morco-Feely Palindromes
time limit per test
1 second
memory limit per test
256 megabytes
input
standard input
output
standard output
Input

The only line of the input contains a string of digits. The length of the string is between $$$1$$$ and $$$100$$$, inclusive.

Output

Print "Yes" or "No", You can output each letter in any case (lowercase or uppercase). For example, the strings "yEs", "yes", "Yes" and "YES" will be accepted as a positive answer.

Examples
Input
5
Output
YES
Input
43
Output
NO
Input
76
Output
NO
Input
10
Output
NO
Input
37
Output
YES