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  1. a=r,=0,
  2. exec'r=len(a)-a[a[r]];a+=r,;'*input()
  3. print r
Success #stdin #stdout 0.59s 9080KB
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https://ideone.com/hVmuzw
language:
Python (cpython 2.7.16)
created:
9 years ago
visibility:
public

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