using System;

using System.Runtime.InteropServices;

using System.Collections.Generic;

class Cat {}

class Dog {}

​

class List<T> 

{       

    public void WhatAmI()

    {

        Console.WriteLine(typeof(T));   

    }

}

​

public class Program

{

    public static void Main(string[] _)

    {

        List<Cat> listKocek = new();

        List<Dog> listPsu = new();

        listKocek.WhatAmI();

        listPsu.WhatAmI();

    }

}