Problem:
Score : 100 points

Problem Statement

As a New Year's gift, Dolphin received a string s of length 19.

The string s has the following format: [five lowercase English letters],[seven lowercase English letters],[five lowercase English letters].

Dolphin wants to convert the comma-separated string s into a space-separated string.

Write a program to perform the conversion for him.

Constraints

The length of s is 19.

The sixth and fourteenth characters in s are ,.

The other characters in s are lowercase English letters.

Input

The input is given from Standard Input in the following format:

s

Output

Print the string after the conversion.

Sample Input 1

happy,newyear,enjoy

Sample Output 1

happy newyear enjoy

Replace all the commas in happy,newyear,enjoy with spaces to obtain happy newyear enjoy.

Sample Input 2

haiku,atcoder,tasks

Sample Output 2

haiku atcoder tasks

Sample Input 3

abcde,fghihgf,edcba

Sample Output 3

abcde fghihgf edcba

Solution in PHP (5.6.30) (judge verdict: Wrong Answer)

<?php
  
$N = fgets(STDIN);
$N = explode(" ", $N);

$k = $N[0];
$s = $N[1];

$count = 0;
for ($x = 0; $x <= $k; $x++) {
  for ($y = 0; $y <= $k; $y++) {
    $z = $s - ($x + $y);
      if ($x + $y + $z == $s) {
        $count++;
      }
  }
}
echo $count;
?>