Problem:
Score : 200 points

Problem Statement

Given is a string S. Replace every character in S with x and print the result.

Constraints

S is a string consisting of lowercase English letters.

The length of S is between 1 and 100 (inclusive).

Input

Input is given from Standard Input in the following format:

S

Output

Replace every character in S with x and print the result.

Sample Input 1

sardine

Sample Output 1

xxxxxxx

Replacing every character in S with x results in xxxxxxx.

Sample Input 2

xxxx

Sample Output 2

xxxx

Sample Input 3

gone

Sample Output 3

xxxx

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

"use strict";

const main = arg => {
    // 標準入力の不要な空白と改行を削除し、配列に格納する
    const inputLength = arg.length;
    const letter = "x";
    const answer = letter.repeat(inputLength).trim().replace(/\r?\n/g, '');
    
    console.log(answer);
}

main(require('fs').readFileSync('/dev/stdin', 'utf8'));