// POO con menos if's (c) 2024 Baltasar <baltasarq@gmail.com> MIT License

using System;
using System.Text;
using System.Collections.Generic;


class POI {
    public /*required*/ string Name { get; init; }
    public /*required*/ double Lat { get; init; }
    public /*required*/ double Lon { get; init; }
    
    public override string ToString()
    {
    	return $"{this.Name}: W{this.Lon}º N{this.Lat}º";
    }
}

class City: POI {
	public override string ToString()
    {
    	return "Ciudad de " + base.ToString();
    }
}

class Monument: POI {
	public override string ToString()
    {
    	return "Monumento de " + base.ToString();
    }
}

class Mountain: POI {
	public override string ToString()
    {
    	return "Cima del " + base.ToString();
    }
}

class Lake: POI {
	public override string ToString()
    {
    	return "Lago " + base.ToString();
    }
}

class Reporter {
    public Reporter(IEnumerable<POI> lpois)
    {
        this.lpois = new List<POI>( lpois );
    }

    public IList<POI> LPOIS => new List<POI>( this.lpois );

    public string Report()
    {
        var toret = new StringBuilder();

        foreach(var poi in this.lpois) {
            toret.AppendLine( poi.ToString() );
        }

        return toret.ToString();
    }
    
    private List<POI> lpois;
}

public class Test
{
	public static void Main()
	{
		var l1 = new List<POI> {
		    new City { Name = "El Cabo",
		             Lat = -34.0558188,
		             Lon = 18.3003856 },
		    new Mountain { Name = "Everest",
		             Lat = 27.9881186,
                     Lon = 86.9043755 },
            new Monument { Name = "Torre Eiffel",
		             Lat = 48.8583,
                     Lon = -2.2945 },
            new Lake { Name = "Español",
                     Lat = 43.6150755,
                     Lon = 173.1834932 },
		};

		Console.WriteLine( new Reporter( l1 ).Report() );
	}
}