using System;

using System.Collections.Generic;

​

public enum PointType

{

    HOSPITAL,

    CAFE,

    RESTAURANT

}

public class Point

{

    private readonly int x;

    private readonly int y;

    private readonly PointIcon icon;

​

    public Point(int x, int y, PointIcon icon)

    {

        this.x = x;

        this.y = y;

        this.icon = icon;

    }

​

    public void Draw()

    {

        Console.WriteLine($"{icon.PointType} at {x} {y}");

    }

}

public class PointIcon

{

    public PointType PointType { get; init; }

    public byte[] icon {  get; init; }

​

    public PointIcon(PointType pointType, byte[] icon)

    {

        PointType = pointType;

        this.icon = icon;

    }

}

public class PointIconFactory

{

    Dictionary<PointType, PointIcon> icons = new Dictionary<PointType, PointIcon>();

​

    public PointIcon GetPointIcon(PointType pointType)

    {

        if(!icons.ContainsKey(pointType))

            icons.Add(pointType, new PointIcon(pointType, null));

​

        return icons[pointType];

    }

}

public class PointService

{

    private readonly PointIconFactory pointIconFactory;

​

    public PointService(PointIconFactory pointIconFactory)

    {

        this.pointIconFactory = pointIconFactory;

    }

​

    public List<Point> GetPoints()

    {

        List<Point> points = new List<Point>();

        points.Add(new Point(1, 2, pointIconFactory.GetPointIcon(PointType.CAFE)));

        return points;

    }

}

public class Program

{

    public static void Main()

    {

        var pointService = new PointService(new PointIconFactory());

        foreach (var point in pointService.GetPoints())

        {

            point.Draw();

        }

    }

}