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  1. from math import*
  2. r = int(input())
  3. print(round(pi*(r**2),3))
  4. print(round(2*pi*r,3))
  5.  
Success #stdin #stdout 0.02s 9424KB
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https://ideone.com/MnpPMF
language:
Python 3 (python  3.9.5)
created:
4 years ago
visibility:
public

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