Question
诪爪讗讜 讗转 讻诪讜转 讛诪住驻专讬诐 讛砖诇诪讬诐 讛讞讬讜讘讬讬诐 讘注诇讬 `10` 住驻专讜转 讘讚讬讜拽, 砖诪转讞诇拽讬诐 讘-`11` 讜砖讻诇 讗讞转 诪住驻专讜转讬讛诐 讛讬讗 `5` 讗讜 `7`.
Sources:
- Israeli IMO Selection, 2014, Stage A Question 8
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