Program.cs

namespace Base
{
    class Program
    {
        static void Main(string[] args)
        {
            List<Student> Grop = new List<Student>();
            Grop.Add(new Student("Oleg", "Surochek", 100));
            Grop.Add(new Student("Vasya", "Purojok", 106));
            Grop.Add(new Student("Anastasia", "Antonova", 101));
            Grop.Add(new Student("Jenya", "Uzkih", 120));
            Group gr118 = new Group(Grop);
            Grop.Add(new Student("Jenya", "Uzkih", 104));
            gr118.showgroup();
            gr118.Del("Oleg");
            gr118.showgroup();
            gr118.showstudents();

        }
    }
}