#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define int long long
#define maxn 500005
#define mi LLONG_MIN
#define ma LLONG_MAX
#define mod 1000000007
#define pb push_back
#define S second
#define F first
int ask(string s) {
int ans;
cout << "? " << s << endl;
cin >> ans;
return ans;
}
void answer(int a, int b) {
cout << "! " << a << " " << b << endl;
exit(0);
}
void solve() {
int n;
cin >> n;
if (n <= 30) {
string s(n, '0');
int a = -1, b = -1;
for (int i = 0; i < n; i++) {
s[i] = '1';
int ans = ask(s);
if (ans == 1) {
swap(a, b);
a = i;
if (b != -1) {
answer(a, b);
}
}
s[i] = '0';
}
} else {
int l = 1, r = n - 1;
int answ;
while (r > l) {
int m = (l + r) / 2;
string s(n, '0');
for (int i = l; i <= m; i++) {
s[i] = '1';
}
if (ask(s) % 2) {
answ = m;
r = m;
} else {
l = m + 1;
}
}
answer(0, r);
}
}
int32_t main() {
ios::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
int t = 1;
// cin >> t;
while (t--) solve();
}
