fn main() {
	let mut s = String::new();
	println!("? 0 0");
	std::io::stdin().read_line(&mut s).ok();
	println!("? 0 100");
	std::io::stdin().read_line(&mut s).ok();
	let n: Vec<f64> = s.split_whitespace().flat_map(str::parse).collect();
	let y = (n[0] - n[1] + 10000.0) / 200.0;
	println!("! {} {}", (n[0] - y * y).sqrt().round(), y.round())
}