static public void main(String args[])
{
    String a = "Can", b = "Am", c = "Be", d= " ";
    int first = a.compareTo(b);
    int second = a.compareTo(c);
    int third = b.compareTo(c);
    int fourth = d.compareTo(d);
    if (first > 0)
    {
        fourth = second;
        second = first;
        first = fourth;

    }

        System.out.println(first);
        System.out.println(second);
        System.out.println(third);
        System.out.println(fourth);


}