EXTEND: Great job. Let's see what it would take to boost your grade average even further!

1. Use Insert from in main to add 93 to the list of grades.
2. Use change_grade at the bottom of main to change your 94 to 99.
3. Use remove_lowest_two to remove the lowest two grades.
4. Call print_grades and print_average in the main function to see the new grades and average!

To navigate the page using the TAB key, first press ESC to exit the code editor.