import java.util.*;
public class Comp {
public static void main (String args[]) throws Exception {
String elements[] = {"Irish Setter", "Poodle",
"English Setter", "Gordon Setter", "Pug"};
Set set = new TreeSet(Collections.reverseOrder());
for (int i=0, n=elements.length; i set.add(elements[i]);
}
System.out.println(set);
System.out.println(((TreeSet)set).comparator());
}
}