output_description: Print the string after the conversion.
  
  * * *
input_description: The input is given from Standard Input in the following format:
  
      
      
      s
attempt: #include <bits/stdc++.h>
  using namespace std;
  typedef pair<int,int> P;
  typedef long long ll;
  typedef long double ld;
  const int inf=1e9+7;
  const ll longinf=1LL<<60;
  #define REP(i,m,n) for(int i=(int)(m) ; i < (int) (n) ; ++i )
  #define rep(i,n) REP(i,0,n)
  #define F first
  #define S second
   
  const int mx=200010;
  const ll mod=1e9+7;
  
  int main(){
    string s;
    cin >> s;
  
    cout << s.substr(0,5) << " " << s.substr(6,7) << " " << s.substr(14,5) << endl;
    return 0;
  }
problem_description: 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.
samples: [{"input": "happy,newyear,enjoy", "output": "happy newyear enjoy\n    \n\nReplace all the commas in `happy,newyear,enjoy` with spaces to obtain `happy\nnewyear enjoy`.\n\n* * *"}, {"input": "haiku,atcoder,tasks", "output": "haiku atcoder tasks\n    \n\n* * *"}, {"input": "abcde,fghihgf,edcba", "output": "abcde fghihgf edcba"}]