// https://oj.uz/problem/view/COI20_zagrade
// try to grab 'entire sequence is valid' subtasks
#include <bits/stdc++.h>
using namespace std;
int n, q;
inline int query(int i, int j) {
cout << "? " << i << " " << j << endl;
int r; cin >> r;
return r;
}
inline void output(vector<short>&s) {
cout << "! ";
for (int i = 1; i <= n; i++) {
cout << (s[i] == 0 ? '(' : ')');
}
cout << endl;
}
int main() {
cin >> n >> q;
vector<short> s(n+1);
s[1] = 0; s[n] = 1;
for (int i = 2; i <= n-1; i++) {
// query i..n
int r = query(i, n);
if (r) {
s[i] = 0;
}
else s[i] = 1;
}
output(s);
}
