#include <bits/stdc++.h>

using i64 = long long;

int ask(std::string s) {
  std::cout << "? " << s << std::endl;
  int x;
  std::cin >> x;
  return x;
}

int main() {
  std::ios::sync_with_stdio(false);
  std::cin.tie(nullptr);

  int n;
  std::cin >> n;

  std::vector<int> A {0};
  std::vector<int> B;
  for (int i = 1; i < n; i++) {
    B.push_back(i);
  }
  for (int i = 0; i < n - 1; i++) {
    int a;
    {
      std::string s(n, '0');
      for (int j = 0; j < B.size(); j++) {
        s[B[j]] = '1';
      }
      if (ask(s) == 0) {
        std::cout << "! " << 0 << std::endl;
        return 0;
      }
    }
    {
      std::string s(n, '0');
      for (int j = 0; j <= i; j++) {
        s[A[j]] = '1';
      }
      a = ask(s);
    }
    bool ok = false;
    int lo = 0, hi = B.size() - 1;
    while (lo < hi) {
      int m = (lo + hi) / 2;
      std::string s(n, '0'), t(n, '0');
      for (int j = 0; j <= m; j++) {
        s[B[j]] = '1';
        t[B[j]] = '1';
      }
      for (int j = 0; j <= i; j++) {
        t[A[j]] = '1';
      }
      int b = ask(s), c = ask(t);
      if (a + b == c) {
        lo = m + 1;
      } else {
        hi = m;
      }
    }
    A.push_back(B[hi]);
    B.erase(B.begin() + hi);
  }
  std::cout << "! " << 1 << std::endl;

  return 0;
}