#include<iostream>
#include<sstream>
 
using namespace std;
 
int main()
{
        int i,x;
 
        stringstream sstr;
        string line;
 
        for(i=0;i<3;i++) {
                getline(cin,line);
 
                sstr<<line;
 
                while(sstr) {
                        sstr>>x;
                        cout<<x<<" ";               //output repeates last element two times
                }
 
                cout<<endl;
 
                sstr.clear();
        }
 
        return 0;
}