EXERCISE 5: This program has 3 different functions that are almost the same. Let's refactor it to use one function.

• Create a new function and name it fly. Delete the old functions.
• The new function should take in two parameters: fly_height to control how high the toucan flies and fly_type so that the toucan can tell us how high he's flying.
• Use the new function to have the toucan do the same series of flights as before: high, high, low, medium, low.

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