1using System.Collections.Generic;
 2
 3namespace mars.rover.domain
 4{
 5    public class NASA
 6    {
 7        readonly Queue<Rover> rovers = new Queue<Rover>();
 8        public Mars plateau { get; set; }
 9
10        public void deploy(Rover rover)
11        {
12            rovers.Enqueue(rover);
13        }
14
15        public Rover waiting()
16        {
17            return rovers.Dequeue();
18        }
19    }
20}