static void Main(string[] args)
{
Dictionary <string, string> Obj = new Dictionary <string, string>
{
["First"] = "First Message",
["Second"] = "Second Message"
};
Console.WriteLine(Obj["First"]);
var entrollment = new Enrollment();
entrollment.Add(new Student("A"));
entrollment.Add(new Student("B"));
Console.WriteLine($"{entrollment.Length()}");
}
