#include<bits/stdc++.h>
using namespace std;
#define int long long
signed main(){
    int N;
    cin>>N;
    if(N<1000){
        cout << N << endl;
        return 0;
    }
    else if(N<1000000){
        cout << N/1000 << ',' << N%1000 << endl;
        return 0;
    }
    else if(N<1000000000){
        cout << N/1000000 << ',' << N/1000-(N/1000000)*1000 << ',' << N%1000 << endl;
        return 0;
    }
    else{
        cout << "1,000,000,000" << endl;
    }
}