1namespace mars.rover.domain
 2{
 3    static public class Headings
 4    {
 5        static public Heading North = new North(new DefaultPlateau());
 6        static public Heading East = new East(new DefaultPlateau());
 7        static public Heading West = new West(new DefaultPlateau());
 8        static public Heading South = new South(new DefaultPlateau());
 9
10        class DefaultPlateau : Mars
11        {
12            public DefaultPlateau() : base(5, 5)
13            {
14            }
15        }
16    }
17}