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  1. s,n=input()
  2. k=0
  3. while k<=len(s):print s[k:k+n].ljust(n)[::1-2*((k/n)%2)];k+=n
Success #stdin #stdout 0.01s 8976KB
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"Programming Puzzles & Code Golf", 4
stdout
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Prog
mmar
ing 
zzuP
les 
oC &
de G
 flo
https://ideone.com/Qu5l6r
language:
Python (cpython 2.7.16)
created:
8 years ago
visibility:
secret

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