#include <bits/stdc++.h>
using namespace std;
int marc[100005];
stack<int> st;
int main(){
int n,q; cin>>n>>q;
cout<<"? "<<1<<" "<<n<<" "<<endl;
int y; cin>>y;
if(y == 1){
marc[n] = 0;
for(int i = 1; i < n; i++){
if(st.size() == 0){
marc[i] = 1;
st.push(i);
continue;
}
cout<<"? "<<st.top()<<" "<<i<<endl;
int x; cin>>x;
if(x == 0){
marc[i] = 1;
st.push(i);
}else{
marc[i] = 0;
st.pop();
}
}
cout<<"! ";
for(int i = 1; i <= n; i++){
if(marc[i] == 0)cout<<")";
else cout<<"(";
}cout<<endl;
return 0;
}
else{
for(int i = 1; i <= n; i++)marc[i] = -1;
int qtd = 0;
for(int i = 1; i <= n; i++){
if(st.size() == 0){
st.push(i);
continue;
}
cout<<"? "<<st.top()<<" "<<i<<endl;
int x; cin>>x;
if(x == 1){
qtd++;
marc[st.top()] = 1;
marc[i] = 0;
st.pop();
}else{
st.push(i);
}
}
for(int i = 1; i <= n; i++)
if(marc[i] == -1){
if(qtd < n/2){marc[i] = 0; qtd++;}
else marc[i] = 1;
}
cout<<"! ";
for(int i = 1; i <= n; i++){
if(marc[i] == 0)cout<<")";
else cout<<"(";
}cout<<endl;
return 0;
}
}
