19 lines
339 B
Python
19 lines
339 B
Python
c = 2; n =int(input()); P = []
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if n == 1:
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print(2)
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else:
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k = 3
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while c <= n:
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for p in P:
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if k%p == 0:
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break
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if p**2 > k:
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P.append(k)
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c+=1
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break
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else:
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P.append(k)
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c+=1
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k += 2
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print(P[-1])
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