fn main() {
    let n = read();
    let mut p = (1..=n).collect::<Vec<_>>();
    shuffle(&mut p);
    sort(&mut p);
    println!("!");
    println!("{}", n - 1);
    use util::*;
    println!("{}", p.iter().join(" "));
}

fn sort(p: &mut [usize]) {
    if p.len() == 1 {
        return;
    }
    let m = p.len() / 2;
    {
        let (l, r) = p.split_at_mut(m);
        sort(l);
        sort(r);
    }
    use std::cmp::*;
    let compare = |a: &usize, b: &usize| -> Ordering {
        println!("? {} {}", *a, *b);
        let t = read();
        if t == 1 {
            Ordering::Less
        } else {
            Ordering::Greater
        }
    };
    let mut tmp = vec![];
    let mut i = 0;
    let mut j = m;
    while i < m && j < p.len() {
        if Ordering::Less == compare(&p[i], &p[j]) {
            tmp.push(p[i]);
            i += 1;
        } else {
            tmp.push(p[j]);
            j += 1;
        }
    }
    while i < m {
        tmp.push(p[i]);
        i += 1;
    }
    for (p, tmp) in p.iter_mut().zip(tmp) {
        *p = tmp;
    }
}

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
        }
    }
}

fn rand_memory() -> usize {
    Box::into_raw(Box::new("I hope this is a random number")) as usize
}

fn rand() -> usize {
    static mut X: usize = 0;
    unsafe {
        if X == 0 {
            X = rand_memory();
        }
        X ^= X << 13;
        X ^= X >> 17;
        X ^= X << 5;
        X
    }
}

fn shuffle<T>(a: &mut [T]) {
    for i in 1..a.len() {
        let p = rand() % (i + 1);
        a.swap(i, p);
    }
}