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#include <bits/stdc++.h>

using namespace std;

#define sim template < class c
#define ris return * this
#define dor > debug & operator <<
#define eni(x) sim > typename \
enable_if<sizeof dud<c>(0) x 1, debug&>::type operator<<(c i) {
sim > struct rge { c b, e; };
sim > rge<c> range(c i, c j) { return {i, j}; }
sim > auto dud(c* x) -> decltype(cerr << *x, 0);
sim > char dud(...);
struct debug {
#ifdef LOCAL
~debug() { cerr << endl; }
eni(!=) cerr << boolalpha << i; ris; }
eni(==) ris << range(begin(i), end(i)); }
sim, class b dor(pair < b, c > d) {
  ris << "(" << d.first << ", " << d.second << ")";
}
sim dor(rge<c> d) {
  *this << "[";
  for (c it = d.b; it != d.e; ++it)
    *this << ", " + 2 * (it == d.b) << *it;
  ris << "]";
}
#else
sim dor(const c&) { ris; }
#endif
};
#define imie(x...) " [" #x ": " << (x) << "] "

#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
template <typename A, typename B>
using unordered_map2 = __gnu_pbds::gp_hash_table<A, B>;
using namespace __gnu_pbds;
template <typename T> using ordered_set =
  __gnu_pbds::tree<T, __gnu_pbds::null_type, less<T>, __gnu_pbds::rb_tree_tag,
                   __gnu_pbds::tree_order_statistics_node_update>;
// ordered_set<int> s; s.insert(1); s.insert(2);
// s.order_of_key(1);    // Out: 0.
// *s.find_by_order(1);  // Out: 2.

using ld = long double;
using ll = long long;

constexpr int mod = 1000 * 1000 * 1000 + 7;
constexpr int odw2 = (mod + 1) / 2;

void OdejmijOd(int& a, int b) { a -= b; if (a < 0) a += mod; }
int Odejmij(int a, int b) { OdejmijOd(a, b); return a; }
void DodajDo(int& a, int b) { a += b; if (a >= mod) a -= mod; }
int Dodaj(int a, int b) { DodajDo(a, b); return a; }
int Mnoz(int a, int b) { return (ll) a * b % mod; }
void MnozDo(int& a, int b) { a = Mnoz(a, b); }
int Pot(int a, ll b) { int res = 1; while (b) { if (b % 2 == 1) MnozDo(res, a); a = Mnoz(a, a); b /= 2; } return res; }
int Odw(int a) { return Pot(a, mod - 2); }
void PodzielDo(int& a, int b) { MnozDo(a, Odw(b)); }
int Podziel(int a, int b) { return Mnoz(a, Odw(b)); }
int Moduluj(ll x) { x %= mod; if (x < 0) x += mod; return x; }

template <typename T> T Maxi(T& a, T b) { return a = max(a, b); }
template <typename T> T Mini(T& a, T b) { return a = min(a, b); }

constexpr int nax = 1'300'000 + 105;

int fut[nax];
int roz[nax];
int ile[nax];

int fuf(int w) {
  if (fut[w] == w) return w;
  return fut[w] = fuf(fut[w]);
}

void fuu(int u, int v) {
  u = fuf(u);
  v = fuf(v);
  if (u == v) {
    ile[u]++;
    assert(roz[u] == ile[u]);
    return;
  }
  roz[u] += roz[v];
  ile[u] += ile[v] + 1;
  fut[v] = u;
  roz[v] = 0;
  ile[v] = 0;
  assert(0 <= ile[u] and ile[u] <= roz[u]);
  assert(roz[u] - 1 <= ile[u]);
}

int kto[nax];

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

  for (int i = 0; i < nax; i++) {
    fut[i] = i;
    roz[i] = 1;
    ile[i] = 0;
  }

  int n, q;
  cin >> n >> q;

  int nast = 0;
  for (int i = 1; i <= n; i++) {
    kto[i] = nast++;
  }

  while (q--) {
    int a, b;
    char c;
    cin >> c >> a;
    assert(1 <= a and a <= n);
    if (c == '+') {
      cin >> b;
      assert(1 <= b and b <= n);
      fuu(kto[a], kto[b]);
    } else if (c == '-') {
      int& k = kto[a];
      a = fuf(k);
      k = nast++;
      roz[a]--;
      ile[a]--;
      assert(0 <= ile[a] and ile[a] <= roz[a]);
      assert(roz[a] - 1 <= ile[a]);
    } else if (c == '?') {
      a = fuf(kto[a]);
      if (ile[a] == roz[a]) {
        cout << '1';
      } else if (ile[a] + 1 == roz[a]) {
        if (roz[a] == 1) {
          cout << '0';
        } else {
          assert(roz[a] >= 2);
          cout << '?';
        }
      } else {
        assert(false);
      }
    } else {
      assert(false);
    }
  }

  cout << endl;

  return 0;
}