b = nil
n = 0
a = nil
i = 0
c = []
(0...10).each do |i|
  a = [i] * 4
  puts a*" "
  STDOUT.flush
  s = gets.chomp
  exit if s == "4 0"
  if s == "0 0"
    n = i
    break;
  end
end
(0...4).each do |i|
  (0...10).each do |j|
    a = [n] * 4
    a[i] = j
    puts a*" "
    STDOUT.flush
    s = gets.chomp
    if s[0] == "1"
      c[i] = j
      break;
    end
  end
end
puts c*" "
STDOUT.flush