import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;
import java.util.Scanner;

public class Main2 {
    Scanner sc = new Scanner(System.in);
    ArrayList<List<Integer>> permutations = new ArrayList<>();

    void run(){
        int cases = sc.nextInt();
        for (int i = 0; i < cases; i++){

            ArrayList<Integer> initial = new ArrayList<>();
            for (int j = 0; j < 4; j++){
                initial.add(sc.nextInt());
            }
            permute(new ArrayList<Integer>(), initial);



        }


    }

    void permute(List<Integer> out, List<Integer> in){
        if (in.size() == 0){
            permutations.add(out);
            System.out.println(out.toString());
        } else {
            for (int i = 0; i < in.size(); i++){
                int n = in.get(i);
                ArrayList<Integer> newIn = new ArrayList<>(in);
                ArrayList<Integer> newOut = new ArrayList<>(out);
                newIn.remove(i);
                newOut.add(n);
                permute(newOut, newIn);
            }
        }
    }

    void check24(){
        boolean check = false;
        for (List l ; permutations){
        check = checkGroup1(l);
        if(check == true) {
            return;
        }
        }
    }
    boolean checkGroup1(List l , ){


    }


    public static void main(String[] args) {
        new Main2().run();
    }
}