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#include <bits/stdc++.h>

using namespace std;
#define PB push_back
#define LL long long
#define FOR(i,a,b) for (int i = (a); i <= (b); i++)
#define FORD(i,a,b) for (int i = (a); i >= (b); i--)
#define REP(i,n) FOR(i,0,(int)(n)-1)
#define st first
#define nd second
#define ALL(x) (x).begin(), (x).end()
#define SZ(x) ((int)(x).size())
#define VI vector<int>
#define PII pair<int,int>
#define LD long double


template<class T> ostream &operator<<(ostream &os, vector<T> V){
    os<<"[";for(auto vv:V)os<<vv<<",";return os<<"]";
}

template<class L, class R> ostream &operator<<(ostream &os, pair<L,R> P) {
    return os << "(" << P.st << "," << P.nd << ")";
}


template<class C> void mini(C& a4, C b4) { a4 = min(a4, b4); }
template<class C> void maxi(C& a4, C b4) { a4 = max(a4, b4); }

template<class TH> void _dbg(const char *sdbg, TH h){cerr<<sdbg<<"="<<h<<"\n";}
template<class TH, class... TA> void _dbg(const char *sdbg, TH h, TA... a) {
  while(*sdbg!=',')cerr<<*sdbg++;cerr<<"="<<h<<","; _dbg(sdbg+1, a...);
}


#ifdef LOCAL
#define debug(...) _dbg(#__VA_ARGS__, __VA_ARGS__)
#else
#define debug(...) (__VA_ARGS__)
#define cerr if(0)cout
#endif

vector<VI> zbiory;
VI id2zbior;
VI id2zbiorPos;

void remove(int id){
  // debug("remove", id);
  int zbior = id2zbior[id];
  int pos = id2zbiorPos[id];
  int last = zbiory[zbior].back();
  swap(zbiory[zbior][pos], zbiory[zbior].back());
  id2zbiorPos[last] = pos;
  zbiory[zbior].pop_back();
}
void insert(int id, int zbior){
  // debug("insert", id, zbior);
  zbiory[zbior].PB(id);
  id2zbior[id] = zbior;
  id2zbiorPos[id] = SZ(zbiory[zbior]) - 1;
}
void merge(int a, int b){
  // debug("merge", a, b);
  if(SZ(zbiory[a]) < SZ(zbiory[b])){
    swap(a, b);
  }
  for(int x : zbiory[b]){
    insert(x, a);
  }
  zbiory[b] = vector<int>();
}

int32_t main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cout << fixed << setprecision(11);
  cerr << fixed << setprecision(6);
  int n, q;
  cin >> n >> q;
  zbiory.push_back({});
  REP(i, n){
    zbiory.PB({i});
    id2zbior.PB(i + 1);
    id2zbiorPos.PB(0);
  }
  string res;
  REP(_, q){
    debug(zbiory, id2zbior, id2zbiorPos);
    char c;
    cin >> c;
    if(c == '+'){
      int a, b;
      cin >> a >> b;
      a--;
      b--;
      debug(c, a, b);
      if(id2zbior[a] == 0){
        int s = id2zbior[b];
        for(int v : zbiory[s]){
          insert(v, 0);
        }
        zbiory[s] = vector<int>();
      } else if(id2zbior[b] == 0){
        int s = id2zbior[a];
        for(int v : zbiory[s]){
          insert(v, 0);
        }
        zbiory[s] = vector<int>();
      } else if(id2zbior[a] != id2zbior[b]){
        merge(id2zbior[a], id2zbior[b]);
      } else{
        int s = id2zbior[a];
        for(int v : zbiory[s]){
          insert(v, 0);
        }
        zbiory[s] = vector<int>();
      }
    } else if(c == '-'){
      int c;
      cin >> c;
      c--;
      debug('-', c);
      remove(c);
      int new_set = SZ(zbiory);
      zbiory.push_back({c});
      id2zbior[c] = new_set;
      id2zbiorPos[c] = 0;
    } else{
      int d;
      cin >> d;
      d--;
      if(id2zbior[d] == 0){
        res.push_back('1');
      } else if(SZ(zbiory[id2zbior[d]]) == 1){
          res.push_back('0');
      } else{
          res.push_back('?');
      }
    }
  }

    cout << res << "\n";
}