#include<bits/stdc++.h>
#define ll long long
#define MAX 5001
using namespace std;
int ask(int l, int r){
int a;
cout<<"? "<<l<<' '<<r<<endl;
cin>>a;
return a;
}
int main(){
ll n, q;
cin>>n>>q;
vector<int> v;
vector<char> ans(n + 1, '(');
for (int i = 1; i <= n; i++){
if (v.empty()) v.push_back(i);
else{
if (ask(v.back(), i) == 1){
ans[i] = ')';
v.pop_back();
}
else{
v.push_back(i);
}
}
}
for (int i = 0; i < v.size() / 2; i++){
ans[v[i]] = ')';
}
cout<<"! ";
for (int i = 1; i <= n; i++) cout<<ans[i];
}
