struct grades
{
    int allgrades[NUMBER_OF_GRADES];

    void printTheGrades()
    {
        cout << " Grades: ";
        double average = 0;

        for (int i = 0; i < NUMBER_OF_GRADES; ++i) {
             cout << allgrades[i] << ' ';
             average += allgrades[i];
        }

        cout << endl << " Average: " << (average / NUMBER_OF_GRADES) << endl;
    }
    void loadGrades()
    {
        for (int i = 0; i < NUMBER_OF_GRADES; ++i) {
             cout << "Grade " << i << ": ";
             cin >> allgrades[i];
        }
    }
};