class ListEl {
    Object obj;
    ListEl next;
    public ListEl(Object o) {
	obj = o;
        next = null;
    }
}

public class MyList{

    public static void main( String [] args) {

	ListEl start, newEl, temp;

        newEl = new ListEl(new Integer(7));
        start = newEl;
        
        // Inserting another element at the beginning of the list

        newEl = new ListEl(new Integer(11));
        newEl.next = start;
        start = newEl;

        // Inserting another element

        newEl = new ListEl(new Integer(13));
	newEl.next = start;
	start =newEl;

        Auxiliaries.printList(start);

        temp = start.next;
         
        // Deleting temp from the list

        start.next = temp.next;
        temp.next = null;
        

        Auxiliaries.printList(start);
    }
}

class Auxiliaries {

    public static void printList(ListEl s) {

	while (s != null) {
	    System.out.println( s.obj);
            s = s.next;
        }
    }
}