STEP 3: We'll use the function parameter variables in our shapes, so we can customize them when we call the function!

• Change the circle's variable name from sprite to head, and change the circle's diameter from 100 to 50.
• Change head's x-coordinate from 0 to x.
• Change head's y-coordinate from 0 to y+50. This will place the circle 50 pixels above whatever y is!
• Change head's color argument from "blue" to the variable color.

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