#63Easy

Palindromic number

Time: 1 s · Memory: 256 MB

Statement

You are given a natural number $n$ . Is it a palindrome, i.e. does it read the same left to right and right to left?

A single integer $n$ ( $1 \le n \le 10^{18}$ ).

YES if it is a palindrome, NO otherwise.

Input

Output

YES

Input

Output

NO

Reverse the number (as in the previous problem) and compare it with the original. $120$ reversed is $21$ , so it is not a palindrome.

Numbers up to $10^{18}$ need long long in C++ and int64 in Go.

Palindromic number

Time: 1 s · Memory: 256 MB

Working with numbers

You are given a natural number $n$ . Is it a palindrome, i.e. does it read the same left to right and right to left?

A single integer $n$ ( $1 \le n \le 10^{18}$ ).

YES if it is a palindrome, NO otherwise.

Input

Output

YES

Input

Output

NO

Reverse the number (as in the previous problem) and compare it with the original. $120$ reversed is $21$ , so it is not a palindrome.

Numbers up to $10^{18}$ need long long in C++ and int64 in Go.