import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.List;

public class Main {
    public static void main(String[] args) {
        try {
            BufferedReader bufferedReader =new BufferedReader(new InputStreamReader(System.in, Charset.defaultCharset()));
            List<Student> studentList = new ArrayList<>();
            int count = Integer.parseInt(bufferedReader.readLine());
            for (int i = 0;i<count;i++) {
                String[] read = bufferedReader.readLine().split(" ");
                int chinese = Integer.parseInt(read[1]);
                int maths = Integer.parseInt(read[2]);
                int english = Integer.parseInt(read[3]);
                Student student = new Student() {
                    @Override
                    public String name() {
                        return read[0];
                    }

                    @Override
                    public int chinese() {
                        return chinese;
                    }

                    @Override
                    public int maths() {
                        return maths;
                    }

                    @Override
                    public int english() {
                        return english;
                    }

                    @Override
                    public int total() {
                        return chinese+maths+english;
                    }
                };
                studentList.add(i,student);
            }

            for (int i = 0;i<count;i++) {
                Student student = studentList.get(i);
                for (int j = 0;j<count;j++) {
                    Student target = studentList.get(j);
                    if (Math.abs(student.total() - target.total()) <= 10) {
                        if (Math.abs(student.chinese() - target.chinese()) > 5) {
                            continue;
                        }
                        if (Math.abs(student.maths() - target.maths()) > 5) {
                            continue;
                        }
                        if (Math.abs(student.english() - target.english()) > 5) {
                            continue;
                        }
                        if (student.name().equals(target.name())) {
                            continue;
                        }
                        if (student.targeted.contains(target.name())) {
                            continue;
                        }
                        System.out.println(student.name()+" "+target.name());
                        target.targeted.add(student.name());
                    }
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public interface Student {
        String name();
        int chinese();
        int maths();
        int english();
        int total();
        List<String> targeted = new ArrayList<>();
    }
}