# b_switchcase.py

# b_switchcase.py

def animal_sound(animal):
    sounds = {
        "cat": "Meow",
        "dog": "Woof",
        "cow": "Moo"
    }
    return sounds.get(animal, "*** Unlisted ***")

# Test the function
for animal in 'cat dog cow sloth'.split():
    print(animal_sound(animal))