a = [*0..9].combination(4).to_a
def get(d)
  puts d.join(" ")
  STDOUT.flush
  b, c = gets.chomp.split(" ").map &:to_i
  exit if b == 4 && c == 0
  [b, c]
end
while a.length > 1 do
  _a = a[0]
  r = get(_a)
  r = r[0] + r[1]
  a.select!{|c| (c & _a).length == r}
end
a = a[0].permutation(4).each do |_a|
  get(_a)
end