using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        Print<Program>();

    }

    public static void Print<T>()

    {

        IList<T> data = new List<T>();

        Console.WriteLine(data.GetType().GetGenericTypeDefinition());

        Console.WriteLine(data.GetType().GetGenericArguments()[0]);

        Console.WriteLine("-------------------------------------------------");

        Console.WriteLine(typeof(IList<T>).GetGenericTypeDefinition());

        Console.WriteLine(typeof(IList<int>).GetGenericArguments()[0]);

    }

}