#include<bits/stdc++.h>
using namespace std;
using Int = long long;
template<typename T1,typename T2> inline void chmin(T1 &a,T2 b){if(a>b) a=b;}
template<typename T1,typename T2> inline void chmax(T1 &a,T2 b){if(a<b) a=b;}

//INSERT ABOVE HERE
signed main(){
  Int n;
  cin>>n;
  Int a=n/1000000;
  Int b=(n%1000000)/1000;
  Int c=n%1000;
  if(a) cout<<a<<",";
  if(a||b) cout<<b<<",";
  cout<<c<<endl;
  return 0;
}