#include <bits/stdc++.h>
#define int long long
#define pb push_back
#define mp make_pair
#define all(x) (x).begin(),(x).end()
#define fi first
#define sc second
//#define endl "\n"
#define pii pair<int,int>

using namespace std;

const int MAXN = 1e5+5;
const int mod7 = 1e9+7;
const long long inf = 1e18;
int n;

int query(string s)
{
    cout << "? " << s << endl;
    cout.flush();
    int x;
    cin >> x;
    return x;
}

string craft(vector<int>& niz)
{
    string s;
    for(int i=0; i<n; i++)s+='0';
    for(auto x: niz)s[x] = '1';
    return s;
}

void guess(bool t)
{
    if(t)cout << "! 1" << endl;
    else cout << "! 0" << endl;
}

signed main()
{
    ios_base::sync_with_stdio(false),cin.tie(0), cout.tie(0);
    int tt=1;
    //cin >> tt;
    while(tt--)
    {

        cin >> n;
        vector<int> cnt(n+1);
        string s;
        for(int i=0; i<n; i++)s+='0';
        vector<int> org;
        for(int i=0; i<n; i++)
        {
            s[i] = '1';
            cnt[i] = query(s);
            s[i] = '0';
        }
        org.pb(0);
        bool resenje = 1;
        for(int i = 1; i<n; i++)
        {

            int l = i;
            int r = n-1;
            int rez = n;
            while(l<=r)
            {
                int mid = l+r >> 1;
                vector<int> niz = org;
                for(int j= i; j<=mid; j++)niz.pb(j);
                set<int> setic;
                for(auto x: niz)setic.insert(x);
                int trcnt = 0;
                for(auto x:setic)trcnt+= cnt[x];
                int trenutno = query(craft(niz));
                if(trenutno == trcnt)l = mid+1;
                else
                {
                    r = mid-1;
                    rez = mid;
                }
            }
            if(rez == n)
            {
                resenje = false;
                break;
            }
            org.pb(rez);
        }
        guess(resenje);

    }
}