# frozen_string_literal: true

def unlocked?
  gets.split.then { |c, l| [c.to_i, l == 'unlocked'] }
end

cs = Array.new(10)
(0..9).each do |i|
  puts i.to_s * 10
  STDOUT.flush
  c, l = unlocked?
  if l
    exit
  else
    cs[i] = c.to_i
  end
end
es = Array.new(10)
(0..9).zip(cs).map do |i, c|
  (0..9).to_a.combination(c).each do |j|
    ds = Array.new(10, '*')
    j.each do |k|
      ds[k] = i
    end
    puts ds.join
    STDOUT.flush
    d, l = unlocked?
    if l
      exit
    else
      if c == d
        es[i] = j
        break
      end
    end
  end
end
xs = Array.new(10)
es.each_with_index do |e, j|
  e.each do |i|
    xs[i] = j
  end
end
puts xs.join