Module(body=[Assign(targets=[Name(id='s', ctx=Store())], value=Call(func=Name(id='set', ctx=Load()), args=[List(elts=[Num(n=2), Num(n=3), Num(n=4)], ctx=Load())], keywords=[], starargs=None, kwargs=None)), Assign(targets=[Name(id='t', ctx=Store())], value=Call(func=Name(id='set', ctx=Load()), args=[List(elts=[Num(n=4), Num(n=5), Num(n=6)], ctx=Load())], keywords=[], starargs=None, kwargs=None)), Assign(targets=[Name(id='u', ctx=Store())], value=Call(func=Name(id='set', ctx=Load()), args=[List(elts=[Num(n=1), Num(n=2), Num(n=3), Num(n=4), Num(n=5)], ctx=Load())], keywords=[], starargs=None, kwargs=None)), Print(dest=None, values=[Name(id='s', ctx=Load())], nl=True), Print(dest=None, values=[Name(id='t', ctx=Load())], nl=True), Print(dest=None, values=[Name(id='u', ctx=Load())], nl=True), Print(dest=None, values=[Str(s='# pair unions')], nl=True), Assign(targets=[Name(id='a', ctx=Store())], value=Call(func=Attribute(value=Name(id='s', ctx=Load()), attr='union', ctx=Load()), args=[Name(id='t', ctx=Load())], keywords=[], starargs=None, kwargs=None)), Assign(targets=[Name(id='b', ctx=Store())], value=Call(func=Attribute(value=Name(id='s', ctx=Load()), attr='union', ctx=Load()), args=[Name(id='u', ctx=Load())], keywords=[], starargs=None, kwargs=None)), Assign(targets=[Name(id='c', ctx=Store())], value=Call(func=Attribute(value=Name(id='t', ctx=Load()), attr='union', ctx=Load()), args=[Name(id='s', ctx=Load())], keywords=[], starargs=None, kwargs=None)), Assign(targets=[Name(id='d', ctx=Store())], value=Call(func=Attribute(value=Name(id='t', ctx=Load()), attr='union', ctx=Load()), args=[Name(id='u', ctx=Load())], keywords=[], starargs=None, kwargs=None)), Assign(targets=[Name(id='e', ctx=Store())], value=Call(func=Attribute(value=Name(id='u', ctx=Load()), attr='union', ctx=Load()), args=[Name(id='s', ctx=Load())], keywords=[], starargs=None, kwargs=None)), Assign(targets=[Name(id='f', ctx=Store())], value=Call(func=Attribute(value=Name(id='u', ctx=Load()), attr='union', ctx=Load()), args=[Name(id='t', ctx=Load())], keywords=[], starargs=None, kwargs=None)), Print(dest=None, values=[Compare(left=Name(id='a', ctx=Load()), ops=[Eq()], comparators=[Name(id='c', ctx=Load())])], nl=True), Print(dest=None, values=[Compare(left=Name(id='a', ctx=Load()), ops=[Eq()], comparators=[Call(func=Name(id='set', ctx=Load()), args=[List(elts=[Num(n=2), Num(n=3), Num(n=4), Num(n=5), Num(n=6)], ctx=Load())], keywords=[], starargs=None, kwargs=None)])], nl=True), Print(dest=None, values=[Compare(left=Name(id='b', ctx=Load()), ops=[Eq()], comparators=[Name(id='e', ctx=Load())])], nl=True), Print(dest=None, values=[Compare(left=Name(id='b', ctx=Load()), ops=[Eq()], comparators=[Call(func=Name(id='set', ctx=Load()), args=[List(elts=[Num(n=1), Num(n=2), Num(n=3), Num(n=4), Num(n=5)], ctx=Load())], keywords=[], starargs=None, kwargs=None)])], nl=True), Print(dest=None, values=[Compare(left=Name(id='d', ctx=Load()), ops=[Eq()], comparators=[Name(id='f', ctx=Load())])], nl=True), Print(dest=None, values=[Compare(left=Name(id='d', ctx=Load()), ops=[Eq()], comparators=[Call(func=Name(id='set', ctx=Load()), args=[List(elts=[Num(n=1), Num(n=2), Num(n=3), Num(n=4), Num(n=5), Num(n=6)], ctx=Load())], keywords=[], starargs=None, kwargs=None)])], nl=True), Print(dest=None, values=[Str(s='# triple unions')], nl=True), Assign(targets=[Name(id='a', ctx=Store())], value=Call(func=Attribute(value=Name(id='s', ctx=Load()), attr='union', ctx=Load()), args=[Name(id='t', ctx=Load()), Name(id='u', ctx=Load())], keywords=[], starargs=None, kwargs=None)), Assign(targets=[Name(id='b', ctx=Store())], value=Call(func=Attribute(value=Name(id='s', ctx=Load()), attr='union', ctx=Load()), args=[Name(id='u', ctx=Load()), Name(id='t', ctx=Load())], keywords=[], starargs=None, kwargs=None)), Assign(targets=[Name(id='c', ctx=Store())], value=Call(func=Attribute(value=Name(id='t', ctx=Load()), attr='union', ctx=Load()), args=[Name(id='s', ctx=Load()), Name(id='u', ctx=Load())], keywords=[], starargs=None, kwargs=None)), Assign(targets=[Name(id='d', ctx=Store())], value=Call(func=Attribute(value=Name(id='t', ctx=Load()), attr='union', ctx=Load()), args=[Name(id='u', ctx=Load()), Name(id='s', ctx=Load())], keywords=[], starargs=None, kwargs=None)), Assign(targets=[Name(id='e', ctx=Store())], value=Call(func=Attribute(value=Name(id='u', ctx=Load()), attr='union', ctx=Load()), args=[Name(id='s', ctx=Load()), Name(id='t', ctx=Load())], keywords=[], starargs=None, kwargs=None)), Assign(targets=[Name(id='f', ctx=Store())], value=Call(func=Attribute(value=Name(id='u', ctx=Load()), attr='union', ctx=Load()), args=[Name(id='t', ctx=Load()), Name(id='s', ctx=Load())], keywords=[], starargs=None, kwargs=None)), Print(dest=None, values=[Name(id='f', ctx=Load())], nl=True), Print(dest=None, values=[Compare(left=Name(id='a', ctx=Load()), ops=[Eq()], comparators=[Call(func=Name(id='set', ctx=Load()), args=[List(elts=[Num(n=1), Num(n=2), Num(n=3), Num(n=4), Num(n=5), Num(n=6)], ctx=Load())], keywords=[], starargs=None, kwargs=None)])], nl=True), Print(dest=None, values=[Compare(left=Name(id='a', ctx=Load()), ops=[Eq()], comparators=[Name(id='b', ctx=Load())])], nl=True), Print(dest=None, values=[Compare(left=Name(id='a', ctx=Load()), ops=[Eq()], comparators=[Name(id='c', ctx=Load())])], nl=True), Print(dest=None, values=[Compare(left=Name(id='a', ctx=Load()), ops=[Eq()], comparators=[Name(id='d', ctx=Load())])], nl=True), Print(dest=None, values=[Compare(left=Name(id='a', ctx=Load()), ops=[Eq()], comparators=[Name(id='e', ctx=Load())])], nl=True), Print(dest=None, values=[Compare(left=Name(id='a', ctx=Load()), ops=[Eq()], comparators=[Name(id='f', ctx=Load())])], nl=True)])