#!/usr/bin/env ruby

require_relative './util.rb'


STDOUT.sync = true
approx_count = 7430933/192

i = 0
prev_id = nil
accumulate = []
read_rules_from_file2(STDIN, 'stdin') { |id,r|
  i += 1
  if id != prev_id
    if prev_id
      accumulate.sort_by! { |i| i.id }#.uniq { |i| i.id }
      accumulate.each_with_index { |a,j|
        accumulate[j+1..accumulate.size].each_with_index { |b,k|
          STDOUT.write "#{a.id}+#{b.id}\t#{a.to_s} <<<>>> #{b.to_s}\n"
        }
      }
      accumulate.clear
    end
    prev_id = id
  end
  accumulate << r
  STDERR.write "reporter:status:cross product ##{i} #{((i*100.0)/approx_count).round 2}%\n"
}