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#ifdef LOCAL
class SS {
   int x[0];
};
extern "C" SS __sanitizer_print_stack_trace();
#define __last_state                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   \
   }                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   \
   ;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   \
   SS x {                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              \
      __sanitizer_print_stack_trace()
#endif
#include <bits/stdc++.h>
#include <chrono>
#include <ext/pb_ds/assoc_container.hpp>
#include <math.h>
using namespace __gnu_pbds;
using namespace std;
#define endl "\n"
#define mp make_pair
#define st first
#define nd second
#define pii pair<int, int>
#define vi vector<int>
#define pb push_back
#define _upgrade ios_base::sync_with_stdio(0), cout.setf(ios::fixed), cout.precision(10), cin.tie(0), cout.tie(0);
#define rep(i, n) for (int i = 0; i < (n); ++i)
#define fwd(i, a, b) for (int i = (a); i < (b); ++i)
#define trav(a, x) for (auto &a : x)
#define all(c) (c).begin(), (c).end()
#define sz(X) (int)((X).size())
typedef long double ld;
typedef unsigned long long ull;
typedef long long ll;
typedef tree<int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update> indexed_set; // find_by_order(x) <-returns x-th element   order_of_key(x) <- returns order of element x
// mt19937_64 gen(chrono::steady_clock::now().time_since_epoch().count());uniform_int_distribution<int> distr(0, 1e9);auto my_rand = bind(distr, gen); // my_rand() zwraca teraz liczbe z przedzialu [a, b]
#ifdef LOCAL
ostream &operator<<(ostream &out, string str) {
   for (char c : str)
      out << c;
   return out;
}
template <class L, class R> ostream &operator<<(ostream &out, pair<L, R> p) { return out << "(" << p.st << ", " << p.nd << ")"; }
template <class L, class R, class S> ostream &operator<<(ostream &out, tuple<L, R, S> p) {
   auto &[a, b, c] = p;
   return out << "(" << a << ", " << b << ", " << c << ")";
}
template <class T> auto operator<<(ostream &out, T a) -> decltype(a.begin(), out) {
   out << '{';
   for (auto it = a.begin(); it != a.end(); it = next(it))
      out << (it != a.begin() ? ", " : "") << *it;
   return out << '}';
}
void dump() { cerr << "\n"; }
template <class T, class... Ts> void dump(T a, Ts... x) {
   cerr << a << ", ";
   dump(x...);
}
#define debug(...) cerr << "[" #__VA_ARGS__ "]: ", dump(__VA_ARGS__)
#else
#define debug(...) ;
#endif

typedef tuple<char, int, int> query;
const int MAXN = 1.3e6 + 99;

unordered_set<int> U[MAXN];
int idx[MAXN];
int cur_cnt = 1;
string res;
int ile_add = 0;

void clear_state(int x) {
   U[idx[x]].erase(x);
   idx[x] = cur_cnt;
   U[cur_cnt++] = {x};
}

void merge(int a, int b) {

   assert(a != b);
   if (b == 0 or (a != 0 and sz(U[a]) < sz(U[b])))
      swap(a, b);

   ile_add += sz(U[b]);
   U[a].insert(all(U[b]));
   for (auto x : U[b])
      idx[x] = a;
   U[b] = {};
}

void add_edge(int a, int b) {
   int idxa = idx[a];
   int idxb = idx[b];
   merge(idxa, idxa == idxb ? 0 : idxb);
}

void process(query q) {
   auto [c, a, b] = q;

   if (c == '+')
      add_edge(a, b);
   if (c == '-')
      clear_state(a);
   if (c == '?')
      res.push_back(idx[a] == 0 ? '1' : (sz(U[idx[a]]) == 1 ? '0' : '?'));
}

// vector<query> worst_test() {
//    const int Q = 1e6;
//    int n = 1 << 18;1
//    vector<query> res;
//    while (sz(res) < Q) {
//       rep(k, 20) for (int i = 0; i + (1 << k) < n; i += (2 << k)) res.push_back({'+', i, i + (1 << k)});
//       rep(i, n) res.push_back({'-', i, -1});
//    }
//    res.resize(Q - 1);
//    res.push_back({'?', 0, -1});
//    return res;
// }

// void print_worst_case() {
//    auto Q = worst_test();

//    cout << (1 << 18) << " " << sz(Q) << endl;

//    for (auto &[c, a, b] : Q) {
//       ++a, ++b;
//       cout << c << " " << a;
//       if (c == '+')
//          cout << " " << b;
//       // --a, --b;
//       cout << endl;
//    }
//    exit(0);
// }

int32_t main() {
   _upgrade;
   // print_worst_case();

   int n = 1 << 18, q;
   cin >> n >> q;
   vector<query> Q(q);
   for (auto &[c, a, b] : Q) {
      cin >> c >> a;
      if (c == '+')
         cin >> b;
      --a, --b;
   }

   //    auto Q = worst_test();
   debug(sz(Q));
   rep(i, n) clear_state(i);

   for (auto q : Q)
      process(q);
   debug(ile_add);
   cout << res << "\n";
}