using System;

​

namespace Example

{

    public class String { } 

    public class Program

    {

        public static void Main()

        {

            String str1 = null;

            string str2 = null;

            PrintType(str1);

            PrintType(str2);

        }

        static void PrintType<T>(T p)

        {

            Console.WriteLine(typeof(T));

        }

    }

}