STEP 8: Let's add the letter to where we're storing our revealed message.

Just like with integers, where we can add to an existing variable with +=, we can do the same with strings.

• In , drag in Add Value to the bottom of your program.
• At the bottom of your program, replace the my_var before the += with revealed_message.
• In the bottom of your program, replace the number 1 after the += with the variable my_var.