If you want to change your answer, well, your answer is a already submitted, so just click Train Again and submit another solution. You can have multiple solutions per kata. Or your can fork it, but that is only for small changes.

Hey! I appreciate the feedback. After submitting my solution, I saw some other switch solutions and they had the default case, but I didn't know how to change my final answer. Switch is one I have rarely used and wanted to practice. Gotta remember the default! Thanks again for your comment.