# sorting a list alphabetically; original list is permanently changed

#cars = ['bmw', 'audi', 'toyota', 'subaru']
#print(cars)
#cars.sort()
#print(cars)
#print("\n")

# sorting a list in reverse-alphabetical order; original list is permanently 
# changed

#cars = ['bmw', 'audi', 'toyota', 'subaru']
#print(cars)
#cars.sort(reverse=True)
#print(cars)

# sorting a list but maintaining the original list

cars = ['bmw', 'audi', 'toyota', 'subaru']
print("Here is the original list:")
print(cars)
print("\n Here is the sorted list:")
print(sorted(cars))
print("\n Here is the original list again:")
print(cars)