#include <cstdio>
#include <stdio.h>
#include <stdbool.h>
#include <iostream>
#include <map>
#include <vector>
#include <climits>
#include <stack>
#include <string>
#include <queue>
#include <algorithm>
#include <set>
#include <unordered_set>
#include <unordered_map>
#include <cmath>
#include <cctype>
#include <bitset>
#include <iomanip>
#include <cstring>
#include <numeric>
#include <cassert>
using namespace std;
#define int long long
#define pii pair<int, int>
#define mp make_pair
#define pb push_back
#define fi first
#define se second
int32_t main(){
//ios_base::sync_with_stdio(0);
//cin.tie(0);
//cout.tie(0);
int n, q, a;
cin>>n>>q;
stack<int> st;
vector<char> ans(n+1);
ans[1]='(';
st.push(1);
for (int i=2; i<=n; ++i){
if (st.empty()){
st.push(i);
ans[i]='(';
continue;
}
cout<<"? "<<st.top()<<" "<<i<<"\n";
cout.flush();
cin>>a;
if (a)st.pop(), ans[i]=')';
else st.push(i), ans[i]='(';
}
cout<<"! ";
for (int i=1; i<=n; ++i)cout<<ans[i];
}
