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  1. USING: io kernel math math.parser ;
  2.  
  3.    readln string>number
  4.    dup
  5.    dup
  6.    3
  7.    *
  8.    *
  9.    swap
  10.    -
  11.    2
  12.    swap
  13.    /
  14.    number>string print
  15.  
Success #stdin #stdout 0.19s 163968KB
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https://ideone.com/xeSSf
language:
Factor (factor-0.93)
created:
14 years ago
visibility:
public

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