import java.util.*;

class PTest2 {
    public static void main (String [] arg) {
	SortedSet<Person2> s = new TreeSet<Person2> ();
	s.add(new Person2 ("Kalle", 42));
	s.add(new Person2 ("Olle", 17));
	s.add(new Person2 ("Nisse", 37));
	s.add(new Person2 ("Pelle", 24));
	s.add(new Person2 ("Kalle", 24));
	s.add(new Person2 ("Olle", 71));
	s.add(new Person2 ("Olle", 65));
	s.add(new Person2 ("Nisse", 73));
	s.add(new Person2 ("Nisse", 73));
	System.out.println(s);
    }
}