#!/usr/bin/python
# -*- coding: utf-8 -*-
setA = set([1,2,3,3,2])
setB = set([3,4,5])
setA|setB # Union
setA&setB # Intersection
setA-setB # In set A, but not set B
setB-setA # In set B, but not set A
var = setA&setB
print var