Problem:
Score : 100 points

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.

Sample Input 1

575

Sample Output 1

Yes

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

Sample Input 2

123

Sample Output 2

No

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

Sample Input 3

812

Sample Output 3

No

Solution in JavaScript (node.js v5.12) (judge verdict: Wrong Answer)

'use strict';
function Main(stdin){
  const input = stdin.trim().split(' ').map(str => Number(str));
  const A = input[0], B = input[1], C = input[2], D = input[3];
  
  let start =  A < C ? C : A;
  let end = B < D ? B : D;
  let result = end < start ? 0 : end - start;
  console.log(result);
}

// 固定
Main(require("fs").readFileSync("/dev/stdin", "utf8"));