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Ron sets out into the woods to rescue Harry and Hermoine on a dark night all alone. But the forbidden forest is full of spiders which he is afraid of. He takes out his wand to cast a spell that would get rid of all the spiders. But there is a problem. When Ron gets nervous he forgets the spells. As the time passes, every moment he gets more nervous and keeps forgetting. At the first moment, $N$=1

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solution.cppC++17

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