farm_animals = {"sheep", "cow", "hen"}
print(farm_animals)

for animal in farm_animals:
    print(animal)

print("=" * 40)

# noinspection PySetFunctionToLiteral
wild_animals = set(["lion", "tiger", "panther", "elephant", "hare"])
print(wild_animals)

for animal in wild_animals:
    print(animal)

farm_animals.add("horse")
wild_animals.add("horse")
print(farm_animals)
print(wild_animals)
