#include<bits/stdc++.h>
using namespace std;
int main(){
int N;
cin >> N;
if (N <= 30){
string s(N, '0');
int i = 0, x = -1, y = -1, k;
while (i < N){
s[i] = '1';
cout << "? " << s << endl;
cin >> k;
if (k == 1){if (x < 0)x = i; else y = i;}
s[i] = '0';
i ++;
}
cout << "! " << x << ' ' << y << endl;
return 0;
}
string s(N, '0');
int k;
if (N % 2 == 0){
s.replace(N / 2, N / 2, string(N / 2, '1'));
cout << "? " << s << endl;
cin >> k;
if (k % 2 == 0){
int l = 1, r = N, k;
s.replace(0, N, string(N, '0'));
while (l <= r){
int mid = (l + r) / 2 - 1;
s.replace(l, mid - l + 1, string(mid - l + 1, '1'));
cout << "? " << s << endl;
cin >> k;
s.replace(l, mid - l + 1, string(mid - l + 1, '0'));
if (k % 2 == 0){l = mid + 1;}
else{r = mid - 1;}
}
cout << "! " << 0 << ' ' << l << endl;
}
}
int x, y, l = N / 2, r = N;
s.replace(0, N, string(N, '0'));
while (l <= r){
int mid = (l + r) / 2;
s.replace(l, mid - l + 1, string(mid - l + 1, '1'));
cout << "? " << s << endl;
cin >> k;
s.replace(l, mid - l + 1, string(mid - l + 1, '0'));
if (k % 2 == 0){l = mid + 1;}
else{r = mid - 1;}
}
x = l;
s.replace(0, N, string(N, '0'));
l = 0, r = N / 2 - 1;
while (l <= r){
int mid = (l + r) / 2;
s.replace(l, mid - l + 1, string(mid - l + 1, '1'));
cout << "? " << s << endl;
cin >> k;
s.replace(l, mid - l + 1, string(mid - l + 1, '0'));
if (k % 2 == 0){l = mid + 1;}
else{r = mid - 1;}
}
y = l;
cout << "! " << y << ' ' << x << endl;
}
