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st1 = {"a", "b", "c", "x"} st2 = {"a", "d", "e", "x", "f", "g"} st = st1.intersection(st2) print(st) ''' run: {'a', 'x'} '''
st1 = {"a", "b", "c", "x"} st2 = {"a", "d", "e", "x", "f", "g"} st = st1 & st2 print(st) ''' run: {'a', 'x'} '''