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# A set is an unordered collection with no duplicate elements

fruits = {'apple', 'orange', 'apple', 'pear', 'orange', 'banana'}

print(fruits) # {'orange', 'banana', 'pear', 'apple'}

print('orange' in basket) # True

print('crabgrass' in basket) # False

# set operations on unique letters from two words

a = set('abracadabra')

b = set('alacazam')

print(a) # {'a', 'r', 'b', 'c', 'd'}

print(a - b) # {'r', 'd', 'b'}

print(a | b) # {'a', 'c', 'r', 'd', 'b', 'm', 'z', 'l'}

print(a & b) # {'a', 'c'}

print(a ^ b) # {'r', 'd', 'b', 'm', 'z', 'l'}

set1 = set()

set2 = set()

# Adding elements to set1

for i in range(1, 6):

set1.add(i)

# Adding elements to set2

for i in range(3, 8):

set2.add(i)

print("Set1 = ", set1) # ('Set1 = ', set([1, 2, 3, 4, 5]))

print("Set2 = ", set2) # ('Set2 = ', set([3, 4, 5, 6, 7]))