def try(arr)
  $stdout.puts arr.join(' ')
  $stdout.flush
  x, y = gets.split.map(&:to_i)
  [x, y]
end

fst = 0

[2, 4, 6, 8].each do |i|
  fst += try([0, 1, i, i + 1]).reduce(:+)
end

if fst == 4
  nums = []
  sets = [[2, 3], [4, 5], [6, 7], [8, 9]]
elsif fst == 7
  nums = []
  sets = [[2, 3], [4, 5], [6, 7], [8, 9]]
elsif fst == 10
  nums = [0, 1]
  sets = [[2, 3], [4, 5], [6, 7], [8, 9]]
end

4.times do |i|
  arr = [sets[0][0], sets[1][0], sets[2][0], sets[3][0]]
  fb1 = try(arr).reduce(:+)
  arr[i] = sets[i][1]
  fb2 = try(arr).reduce(:+)
  if fb2 > fb1
    nums.push(sets[i][1])
  elsif fb2 < fb1
    nums.push(sets[i][0])
  end
end

if nums.size < 4
  arr = [0, 2, 3, 4]
  fb1 = try(arr).reduce(:+)
  arr = [1, 2, 3, 4]
  fb2 = try(arr).reduce(:+)
  if fb2 > fb1
    nums.push(1)
  elsif fb2 < fb1
    nums.push(0)
  end
end

nums.permutation(4).each do |arr|
  res = try(arr)
  break if res == [4, 0]
end