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 PHP7 (7.0.15) (judge verdict: Accepted)

<?php
//error_reporting(0);
$S = trim(fgets(STDIN));
//$P = explode(" ",trim(fgets(STDIN)));
//$H = array_map('intval',explode(" ",trim(fgets(STDIN))));
//function chmax(&$a,$b) {if ($a<$b){$a=$b;return true;}return false;}
//function chmix(&$a,$b) {if ($a>$b){$a=$b;return true;}return false;}

$l=strlen($S);
printf("%s\n",str_repeat("x",$l));