#include <iostream>
using namespace std;
char s[1005];
int ans,pos0,pos1,n;
void send()
{
    printf("? %s\n",s);
    fflush(stdout);
    scanf("%d",&ans);
    ans=n-ans;
}
int main()
{
    scanf("%d",&n);
    for (int i=0;i<n;i++)
    s[i]='1';
    send();
    int mans=ans;
    s[0]='0';
    send();
    if (mans>ans)
    pos1=1;
    else
    pos0=1;
    s[0]='1';
    int st=1,en=n;
    while (st!=en)
    {
        int mid=(st+en)/2;
        for (int i=1;i<=mid;i++)
        s[i]='0';
        send();
        if ((mans-ans)*(pos1? 1:-1)==mid)
        st=mid+1;
        else
        en=mid;
        for (int i=1;i<=mid;i++)
        s[i]='1';
    }
    if (!pos0)
    pos0=st+1;
    else
    pos1=st+1;
    printf("! %d %d",pos0,pos1);
    fflush(stdout);
}