private void deleteTutorial() {
        System.out.println("Enter tutorial's module code");
        System.out.print("Module code: ");
        String modCode = sc.nextLine();
        System.out.print("Tutorial group number: ");
        String tutorialNum = sc.nextLine();
        String result = mrsb.removeTutorial(modCode, tutorialNum);
        System.out.println();
        System.out.println(result);
    }