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ninoseki/gist:5b81903b941580200717

Created March 14, 2015 21:08
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Codeforces#291 Div2-A
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gistfile1.rb
# http://codeforces.com/contest/514/problem/A
digits = gets.chomp.chars.map(&:to_i)
inverted = digits.map.with_index do |n, idx|
case idx
when 0
(9 - n) < n && n != 9 ? 9 - n : n
else
(9 - n) < n ? 9 - n : n
end
end
puts inverted.join.to_i
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