# coding: utf-8

require_relative 'interpreter'
require 'stringio'

(3..6).each do |max_output|
    [*1...max_output].each do |end_pos|
        ([*1...max_output]-[end_pos]).each do |out_pos|
            code = '`'*max_output
            code[end_pos] = '@'
            code[out_pos] = 'O'

            puts code
            ("\n !\"#$%&'()*+,-./0123456789:;<=>?@ABCFGILOPQRSTVWXYZ[\\]^_abdegilnopqrsvx{|}~".chars).repeated_permutation(max_output-2) do |pos|
                this_code = code.clone
                pos.each do |c| this_code.sub!('`',c) end

                in_stream = StringIO.new('')
                out_stream = StringIO.new
                errored = false
                begin
                    aborted = Interpreter.run(this_code, 0, in_stream, out_stream, 30)
                rescue
                    errored = true
                end

                if aborted || out_stream.string.rstrip[/\D/]
                    next
                end

                single = out_stream.string.to_i

                next if single < 1

                in_stream = StringIO.new('')
                out_stream = StringIO.new
                errored = false
                begin
                    aborted = Interpreter.run(this_code*2, 0, in_stream, out_stream, 30)
                rescue
                    errored = true
                end

                next if aborted || out_stream.string.rstrip[/\D/] || out_stream.string.to_i != single

                in_stream = StringIO.new('')
                out_stream = StringIO.new
                errored = false
                begin
                    aborted = Interpreter.run(this_code*3, 0, in_stream, out_stream, 30)
                rescue
                    errored = true
                end


                if !aborted && !out_stream.string.rstrip[/\D/] && single*3 == out_stream.string.to_i
                    $stderr << single.to_s << ': '
                    puts this_code
                    $stderr.puts this_code
                end
            end
        end
    end
end