fn g() -> usize {
	let mut s = String::new();
	std::io::stdin().read_line(&mut s).ok();
	s.trim().parse::<usize>().unwrap()
}

fn main() {
	let n = g();
	let mut t = n * (n - 1) / 2;
	let mut a = vec![0; n];
	println!("? 1 {}", n - 1);
	let mut s = g();
	a[n - 1] = t - s;
	for i in 2..n {
		println!("? {} {n}", i);
		s = g();
		(t, a[i - 2]) = (s, t - s);
	}
	a[n - 2] = t - a[n - 1];
	println!(
		"! {}",
		a.iter()
			.map(|x| x.to_string())
			.collect::<Vec<_>>()
			.join(" ")
	)
}