#include <bits/stdc++.h>
using namespace std;
int ans[1000005];
void solve(int s, int e) {
ans[s] = 0;
ans[e] = 1;
if (e-s == 1) return;
//suppose this means the start wont make a bracket sequence with anything else between s and e.
cout << '?' << ' ' << s+1 << ' ' << s+2 << '\n';
int x; cin >> x;
if (x == 1) {
ans[s+1] = 1;
solve(s+2, e);
}
else {
solve(s+1, e-1);
}
}
int main() {
int n, q; cin >> n >> q;
//suppose this is a valid bracket sequence.
int last = 0;
for (int i = 1; i < n; i += 2) {
cout << "? " << last+1 << ' ' << i+1 << '\n';
int x; cin >> x;
if (x == 1) {
solve(last, i);
last = i+1;
}
}
cout << "! ";
for (int i = 0; i < n; i++) {
if (ans[i] == 0) cout << '(';
else cout << ')';
}
}
