Спостерігачі

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  Orval Jacobson

  https://ioaaau.com/%ec%8b%a0%ec%9a%a9%eb%b6%88%eb%9f%89%ec%9e%90%eb%8f%84-%ed%9d%ac%eb%a7%9d%ec%9d%84-%ec%b0%be%eb%8b%a4-%eb%8c%80%ec%b6%9c%ec%9d%98-%ec%83%88%eb%a1%9c%ec%9a%b4-%ea%b8%b8/