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Time limit 2000/4000/4000/4000 ms. Memory limit 65000/65000/65000/65000 Kb.
Difficulty Alpha
From Russian Informatics Olympiads
Take a number. Print YES, if it is a power of two, NO - otherwise.
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input 1
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Input 2
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8
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22
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Output 1
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Output 2
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YES
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NO
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Для отправки решений необходимо выполнить вход.
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