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  1. x,n=map(eval,raw_input().split())
  2. f=lambda n:n<2and 1or n*f(n-1.)
  3. for i in[1,0]:print"%.6f"%sum((1-j%2*2)*reduce(lambda o,p:o*p,[x]*(i+2*j),1)/f(i+2*j)for j in range(n))
Success #stdin #stdout 0.01s 7900KB
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-5364.411846
-10898.499385
https://ideone.com/JsYNNK
language:
Python (cpython 2.7.16)
created:
9 years ago
visibility:
public

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