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  1. f=lambda x,n,p=1:p<=x and f(x,n,p*10)or n and f(x,n-1,p)*p+x or 0
  2.  
  3. print(f(10,4))
  4. print(f(3,9))
  5. print(f(3737,2))
  6. print(f(993,1))
  7. print(f(8888,8))
Success #stdin #stdout 0.02s 9984KB
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stdin
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Standard input is empty
stdout
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10101010
333333333
37373737
993
88888888888888888888888888888888
https://ideone.com/7xCwpd
language:
Python 3 (python  3.9.5)
created:
7 years ago
visibility:
public

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