my_set = {"apel", "manggis", "pisang"}

a = set()
print(type(a))

for x in my_set :
    print(x)

print("apel" in my_set)

my_set.add("melon")
print(my_set)

my_set.remove("manggis")
print(my_set)

my_set2 = {1,2,3,4,5,1,4}
print(my_set2)

A = {1,2,3,4,5}
B = {4,5,6,7,8,9}

print(A | B)
print(A & B)