tokens = gets.scan( /\)|\(|-?\d+/ )
def parse(tokens)
if tokens.first =~ /-?\d+/
tokens.shift.to_f
else
tokens.shift
r = (parse + parse)/2.0
tokens.shift
r
end
end
puts parse(tokens)

require 'rubygems'
require 'fastercsv'

FasterCSV.parse(File.open("ip-to-country.csv")) do |row|
 if row[2] == "RU"  then
   myfile = File.open("output.csv", "a")
   myfile.puts "#{row[0]}, #{row[1]}, #{row[4]}"
   myfile.close
 end
end

<% all_photos.in_groups_of(5).each do |group| -%>
  <tr>
    <% group.each do |photo| -%>
      <td>
         <%= image_tag(photo.public_path) unless photo.nil? %>
      </td>
     <% end -%>
  </tr>
<% end -%>