#include <bits/stdc++.h>

using namespace std;
int pos0 = -1, pos1 = -1;
void solve(string s, int hamming, int l,int r) {
    if(l > r || (pos0 != -1 && pos1 != -1))
        return;
    string temp = s;
    for(int i = l;i<=r;i++)
        temp[i] = (s[i]-'0') ^ 1 + '0';
    cout<<"? "<<temp<<endl;
    int newHamming;
    cin>>newHamming;
    int changed = r-l+1;
    int expectedHamming = hamming-changed;
    if(newHamming == expectedHamming) {
        pos1 = l;
    } else if(newHamming == hamming+changed) {
        pos0 = l;
    } else {
        solve(s,hamming,l,(l+r)/2);
        solve(s,hamming,(l+r)/2+1,r);
    }
}

int main()
{
    ios_base::sync_with_stdio(0);
    int n;
    cin>>n;
    cout<<"? ";
    string s = "";
    for(int i =0;i<n;i++)
        s.push_back('0');
    cout<<s<<endl;
    int o, z;
    cin>>o;
    z = n-o;
    solve(s,o,0,n/2);
    cout<<"! "<<pos0+1<<" "<<pos1+1<<endl;
    return 0;
}