Sent from my iPhone
> On Jun 7, 2018, at 7:28 AM, Igor PDML-StR <pdml...@komkon.org> wrote:
> I hope people know what "matryoshka" is -- a set of traditional Russian
> wooden dolls that enclosed inside each other.
> Here is a building - matryoshka:
> I am sure quite a few people would recognize this location (and some iconic
> Now, the puzzle (it might not be simple):
> How many buildings can be seen in this photo?
> And to make the question more precise: I am talking about _distinct_
> buildings, but they may not be totally separated. (But a building can consist
> of several parts of differnt heights.)
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