$>.sync = true

def f(n, l=-100, r=100)
  a = [0]*3
  a[n] = l
  puts"? #{a*' '}"
  lv = gets.to_i
  a[n] = r
  puts"? #{a*' '}"
  rv = gets.to_i
  c = (l+r)/2
  if lv > rv
    f(n, c, r)
  elsif lv < rv
    f(n, l, c)
  else
    c
  end
end

x = f(0)
y = f(1)
z = f(2)
puts "! #{x} #{y} #{z}"