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 C (GCC 5.4.1) (judge verdict: Accepted)

#include <stdio.h>
#include <string.h>

#define LENGTH 256

int main(void) {
  char input[LENGTH];
  char *n;

  fgets(input, LENGTH - 1, stdin);

  n = strtok(input, ",");
  printf("%s ",n);

  while(n != NULL){
    n = strtok(NULL, ",");
    if(n != NULL){
      printf("%s ",n);
    }
  }
}