#include <bits/stdc++.h>
using namespace std;
const int MN = 3e4+5;
int n;
bool isOn[MN];
int ask() {
cout << "? ";
for (int i = 1; i <= n; i++) {
cout << isOn[i];
}
cout << endl;
int ret; cin >> ret;
return ret;
}
void get_ans(int sz) {
for (int i = 1; i <= n; i++) {
isOn[i] = false;
}
for (int i = 1; i <= n; i += 2 * sz) {
for (int j = i; j - i + 1 <= sz; j++) {
if (j > n) break;
isOn[j] = true;
}
}
vector<int> a, b;
for (int i = 1; i <= n; i++) {
if (isOn[i]) a.push_back(i);
else b.push_back(i);
}
int lo = 0, hi = a.size()-1;
int idxA = -1;
while (lo <= hi) {
int mid = (lo + hi) / 2;
for (int i = 0; i <= mid; i++) {
isOn[a[i]] = false;
}
int tot = ask();
for (int i = 0; i <= mid; i++) {
isOn[a[i]] = true;
}
if (tot % 2 == 0) {
idxA = mid;
hi = mid-1;
}
else {
lo = mid+1;
}
}
int idxB = -1;
lo = 0, hi = b.size() - 1;
while (lo <= hi) {
int mid = (lo + hi) / 2;
for (int i = 0; i <= mid; i++) {
isOn[b[i]] = true;
}
int tot = ask();
for (int i = 0; i <= mid; i++) {
isOn[b[i]] = false;
}
if (tot % 2 == 0) {
idxB = mid;
hi = mid-1;
}
else {
lo = mid+1;
}
}
cout << "! " << a[idxA] - 1 << " " << b[idxB] - 1 << endl;
}
void solve() {
cin >> n;
int fin;
for (int sz = n/2; sz >= 1; sz /= 2) {
for (int i = 1; i <= n; i++) {
isOn[i] = false;
}
for (int i = 1; i <= n; i += 2 * sz) {
for (int j = i; j - i + 1 <= sz; j++) {
if (j > n) break;
isOn[j] = true;
}
}
int tot = ask();
if (tot % 2) {
fin = sz;
break;
}
}
get_ans(fin);
}
int main() {
solve();
return 0;
}
