import java.util.*;

class PTest {
    public static void main (String [] arg) {
	SortedSet<Person> s = new TreeSet<Person> ();
	s.add(new Person ("Kalle", 42));
	s.add(new Person ("Olle", 17));
	s.add(new Person ("Nisse", 37));
	s.add(new Person ("Pelle", 24));
	s.add(new Person ("Kalle", 24));
	s.add(new Person ("Olle", 71));
	s.add(new Person ("Olle", 65));
	s.add(new Person ("Nisse", 73));
	s.add(new Person ("Nisse", 73));
	for (Person p: s) { System.out.println(p); }
    }
}