#include <iostream>
#include <vector>
#include<string>
#include<algorithm>
using namespace std;


int main(){
	string str;
	cin>>str;
	int len = str.length();
	int arr[1000] = {0};
	int st = 0;
	string s = "";
	for(int i = 0; i<len; i++){
		if(str[i] != ','){
			s+=str[i];
		}else{
			arr[st++] = stoi(s);
			s = "";
		}
	}
	string hh = "";
	for(int i = len-1; i>=0; i--){
		if(str[i] != ','){
			hh+=str[i];
		}else{
			break;
		}
	}
	string ha = "";
	int len1 = hh.length();
	for(int i = len1-1; i>=0; i--){
		ha+=hh[i];
	}
	arr[st] = stoi(ha);
	sort(arr,arr+st+1);
	for(int i = 0; i<=st; i++){
		if(i%4==0 && i!=0){
			cout<<endl;
		}
		cout<<arr[i]<<" ";
	}
}