#include <bits/stdc++.h>
using namespace std;
#define LL long long
#define pii pair<int, LL>
#define F first
#define S second
const int maxn = 3e5+10;
const int mod = 998244353;
const LL inf = 1e9;
int n, A=0, B=0;
string one[maxn];
string zero[maxn];
int qq(int l, int r){
cout<<"? "<<( zero[l] + one[r-l+1] + zero[n-1-r] )<<endl;
int a;
cin>>a;
return a;
}
signed main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
cin>>n;
for(int i=1; i<=n; i++)
one[i]=one[i-1]+'1', zero[i]=zero[i-1]+'0';
int l=0, r=n/2-1, m;
while(l<=r){
m=(l+r)/2;
// cout<<0<<" "<<m<<"\n";
if(qq(0, m) % 2) r=m-1;
else l=m+1;
}
A=l;
l=A+1, r=n-1, m;
while(l<=r){
m=(l+r)/2;
if(qq(m, n-1) % 2==0) r=m-1;
else l=m+1;
}
B=r;
cout<<"! "<<A<<" "<<B<<endl;
return 0;
}
