using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication70
{
    class Program
    {
        static void Main(string[] args)
        {
            HeirClass obj = new HeirClass();
            obj.Show();
        }
    }

    class BasicClass
    {
        protected string mystring;

        public BasicClass(string somestring)
        {
            mystring = somestring;
        }

        public void Show()
        {
            Console.WriteLine(mystring);
        }
    }

    class HeirClass : BasicClass
    {
        public HeirClass()
            : base("hello") { }
    }
}