Repeat Blocks: Course A-B

This is a repeat block. The code inside a
repeat block will repeat, or "loop" as many

times as you'd like.

In puzzles with loops, code that looks like this, works

exactly the same as code like this.

When you see the same blocks repeated over

and over many times in a row, like this,

that's a clue that you could make your

code shorter by moving the repeated
section into a repeat block.

Now let's give it a try!