thisset = {"apple", "banana", "cherry"}
thisset.add("orange")
print(thisset)
mySet = {1, 2, 3}
mySet.add(4)
print(mySet)
# Output:
# {1, 2, 3, 4}
mySet2 = {1, 2, 3}
mySecondSet = {4, 5}
mySet2.update(mySecondSet)
print(mySet2)
# Output:
# {1, 2, 3, 4, 5}
nameSet = {"John", "Jane", "Doe"}
nameSet.add("Ihechikara")
print(nameSet)
# {'John', 'Ihechikara', 'Doe', 'Jane'}