using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Section4.InterfacesAndNamespaces.School;
namespace Section4.InterfacesAndNamespaces
{
    class Program
    {
        static void Main(string[] args)
        {
            Course course = new Course();
            Teacher teacher = new Teacher();
        }
    }
}
