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 PHP (5.6.30) (judge verdict: Accepted)

<?php

fscanf(STDIN, "%s", $a);

$kaisu = strlen($a);
$moji = null;

for($i = 1; $i <= $kaisu; $i++) {
  $moji = $moji.'x';
}

echo $moji;