fn main() {
    let n = read();
    let mut s = vec![0; n + 1];
    s[n] = n * (n + 1) / 2;
    for i in 2..n {
        println!("? 1 {}", i);
        s[i] = read();
    }
    println!("? 2 {}", n);
    s[1] = s[n] - read();
    use util::*;
    println!("! {}", s.windows(2).map(|s| s[1] - s[0]).join(" "));
}

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

mod util {
    pub trait Join {
        fn join(self, sep: &str) -> String;
    }

    impl<T, I> Join for I
    where
        I: Iterator<Item = T>,
        T: std::fmt::Display,
    {
        fn join(self, sep: &str) -> String {
            let mut s = String::new();
            use std::fmt::*;
            for (i, v) in self.enumerate() {
                if i > 0 {
                    write!(&mut s, "{}", sep).ok();
                }
                write!(&mut s, "{}", v).ok();
            }
            s
        }
    }
}