using System;
public class Program
{
public static void Main()
string a = null;
Console.WriteLine(TypeNameLower(a));
int? b = null;
Console.WriteLine(TypeNameLower(b));
bool? c = null;
Console.WriteLine(TypeNameLower(c));
}
static string TypeNameLower<T>(T obj) {
return typeof(T).Name.ToLower();