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Jul 19th, 2018
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Python 0.10 KB | None | 0 0
  1. n = int(input())
  2. a= []
  3. a.append(1)
  4. i= 1
  5. while i<n:
  6.   a.append(a[i-1]+2)
  7.   i = i+1
  8. print(a[n-1])
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