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set1 = {"a", "b", "c"}
set2 = {1, 2, 3}
set3 = {"John", "Elena"}
set4 = {"apple", "bananas", "cherry"}
myset = set1 | set2 | set3 |set4
print(myset)
{'a', cherry, apple, Elena, 1, 'c', banana, 3, 2, John, 'b'}