import java.util.*;
    class Collection_iterators 
    {
        public static void main(String args[]) 
        {
            LinkedList list = new LinkedList();
            list.add(new Integer(6));
            list.add(new Integer(10));
            list.add(new Integer(5));
            list.add(new Integer(2));
            Iterator i = list.iterator();
            Collections.reverse(list);
     Collections.sort(list);
            while(i.hasNext())
         System.out.print(i.next() + " ");
        }
    }