#include <bits/stdc++.h>
#define ar array
//#define int long long
using namespace std;
using ll = long long;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
const int mod = 1e9 + 7;
const ll inf = 1e18;
const int N = 1e5 + 5;
int ask(int i, int j) {
cout << "? " << i << " " << j << endl;
int x; cin >> x;
return x;
}
signed main() {
int n, q; cin >> n >> q;
string ans(n+1, '.');
ans[1] = '(';
stack<int> st; st.push(1);
for(int i=2; i<=n; i++) {
if(st.empty()) {
st.push(i);
ans[i] = '(';
continue;
}
int x = ask(st.top(), i);
if(x == 1) {
ans[i] = ')';
st.pop();
} else {
ans[i] = '(';
st.push(i);
}
}
cout << "! ";
for(int i=1; i<=n; i++) cout << ans[i];
cout << endl;
}
