public Student(string firstName, string lastName, string fN, string tel, string email, byte groupNumber, List<int> marks, Group group)
{
this.FirstName = firstName;
this.LastName = lastName;
this.FN = fN;
this.Tel = tel;
this.Email = email;
this.GroupNumber = groupNumber;
this.Marks = marks;
this.Group = group;
}
