static void Main()
{
SortedList students = new SortedList();
students.Add("Janek");
students.Add("Andzej");
students.Add("Zygmunt");
students.Add("Krzysiek");
students.Add("Anna");
students.SetSortStrategy(new QuickSort());
students.Sort();
students.Print();
students.SetSortStrategy(new InsertionSort());
students.Sort();
students.SetSortStrategy(new MergeSort());
students.Sort();
Console.ReadKey();
}