public static void Submissions(string date) // ASSIGNMENTS per STUDENTS PRINT (DATE CHECK)______________________________________
        {
            List <Assignment>    Assignments = ListProvider.CreateListAssignments();
            List <AssPerStudent> ApS         = new List <AssPerStudent>();

            ApS = AssPerStudent.CreateListsAssPerStudents();

            foreach (var item in ApS[0].Students)
            {
                item.Output();

                foreach (var ass in ApS[0].Assignments)
                {
                    if (ass.Title == item.Subject && ass.subDateTime.ToString("dd/MM/yyyy") == date)
                    {
                        ass.Output();
                    }
                }
            }
        }
        public static void PrintListsAssPerStudents() // PRINT ASSIGNMENTS per STUDENTS______________________________________
        {
            List <AssPerStudent> ApS = new List <AssPerStudent>();

            ApS = AssPerStudent.CreateListsAssPerStudents();


            foreach (var item in ApS[0].Students)
            {
                item.Output();

                foreach (var ass in ApS[0].Assignments)
                {
                    if (ass.Title == item.Subject)
                    {
                        ass.Output();
                    }
                }
            }
        }