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)

/**
 * @param {String} input
 */
function Main(input){
	var inputs = input.split("\n").map(function(num){return Number(num);});
    var clockNum = inputs.shift();
    var T = inputs.sort().reverse();
    if(clockNum === 1){
    	return T[0];
    }
    return T.reduce(function(previousValue, currentValue) {
	    var gcdPrevCurr = gcd(previousValue, currentValue);
	    return (previousValue * currentValue) / gcdPrevCurr;
    });

    function gcd(x, y) {
	    if (y === 0){
	        return x;
	    } else {
	        return gcd(y, x%y);
	    }
    };
}
console.log(Main(require("fs").readFileSync("/dev/stdin", "utf8")));