Welcome to the BTFF EX Sandbox. Here, you can do pretty much anything as long as it doesn't contain any profanity or insults. Just type in anything you're going to test.
Note that your text isn't permanent. New testers will remove your stuff when they test things. To prevent this, type DO NOT ERASE ANYTHING UP TO "END" at the top, and END at the bottom to tell users not to erase your section. Have fun!