[issue23365] integer overflow in itertools.combinations_with_replacement

[Arfrever Frehtes Taifersar Arahesis]

Changes by Arfrever Frehtes Taifersar Arahesis <Arfrever.FTA at GMail.Com>:


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versions: +Python 2.7, Python 3.3, Python 3.5

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue23365>
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