Pack Selection:

Prompt the user to choose between a $4-$pack or a $6-$pack of cupcakes.

Ensure the user's choice is valid. If not, prompt them again.

Cupcake Menu:

Display a menu with these $4$ cupcake flavors and their respective prices:

Vanilla Delight: $$2\mathrm{.}50$

Chocolate Dream: $$3\mathrm{.}00$

Strawberry Bliss: $$2\mathrm{.}75$

Caramel Drizzle: $$3\mathrm{.}50$

Cupcake Selection:

Prompt the user to select a flavor from the menu to add to their pack. Ensure the user's choice is valid. If not, prompt them again.

Repeat the process until the chosen pack $(4$ or $6)$ is full.