public ArrayList<Integer> toEvenRevList(ArrayList<Integer> list)
    {
        ArrayList<Integer> newList = new ArrayList <Integer> (list);

        int temp = -1;
        if (newList.size()<=1)
        {
            return newList;
        }
        else
        {
            if(newList.size()%2==0) {
                temp = newList.remove(newList.size()-2);
            }
            newList.remove(newList.size()-1);
            newList = toEvenRevList(newList);
            if (temp>=0)
                newList.add(temp);
        }



        return newList;
    }