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  1. A = int(input())
  2. k = 1
  3. f = 1
  4. s = 0
  5. while f <= A:
  6.   k += 1
  7.   f *= k
  8.   s += f
  9. print(k)
  10.  
Success #stdin #stdout 0.02s 27672KB
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https://ideone.com/oV9HlA
language:
Python 3 (python  3.9.5)
created:
5 years ago
visibility:
public

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