Hi @Xuan_Nguyen_Nguy_n! Welcome to the Discourse! 
This is a fun place to share your ideas, chat with some amazing people, and ask for help on CodeCombat levels. If you haven’t already, take a look at the new users’ guide. We hope you enjoy your time here! 
Could you please format your code correctly to make it easier for us to help you?
Thanks,
Marmite