using System;

​

public class Item 

{

    public int Id { get; set; }

    public string Name { get; set; }

    public override string ToString() => $"Name: {Name}\nId: {Id}";

}

​

public class Sword : Item 

{

    public Sword() { Name = "Sword"; }

}

public class MagicWand : Item 

{ 

    public MagicWand() { Name = "MagicWand"; }

}

​

public class ItemManager

{

    public static T GenerateFromId<T>(int id)

        where T: Item, new()

    {

        return new T();

    }

}

public class Program

{

    public static void Main()

    {

        var item = ItemManager.GenerateFromId<Sword>(1789);

        Console.Write(item.ToString());

    }

}