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// Arti1990, II UWr

#include <bits/stdc++.h>

#define forr(i, n)                  for(int i=0; i<n; i++)
#define FOREACH(iter, coll)         for(auto iter = coll.begin(); iter != coll.end(); ++iter)
#define FOREACHR(iter, coll)        for(auto iter = coll.rbegin(); iter != coll.rend(); ++iter)
#define lbound(P,K,FUN)             ({auto SSS=P, PPP = P-1, KKK=(K)+1; while(PPP+1!=KKK) {SSS = (PPP+(KKK-PPP)/2); if(FUN(SSS)) KKK = SSS; else PPP = SSS;} PPP;})
#define testy()                     int _tests; cin>>_tests; FOR(_test, 1, _tests)
#define CLEAR(tab)                  memset(tab, 0, sizeof(tab))
#define CONTAIN(el, coll)           (coll.find(el) != coll.end())
#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 MP                          make_pair
#define PB                          push_back
#define ff                          first
#define ss                          second
#define deb(X)                      X;
#define SIZE(coll) 					((int)coll.size())

#define M 1000000007
#define INF 1000000007LL

using namespace std;

int n, m, ID;
int gdzie[1000007];

struct mieszkaniec
{
    vector <int> l;
    int o;
    int size;
    int ma_kompa;
    int ile;
};
mieszkaniec tab[2500007];

int Find(int nr)
{
    if(tab[nr].o == nr)
        return nr;
    tab[nr].o = Find(tab[nr].o);
    return tab[nr].o;
}

bool Union(int a, int b)
{
    tab[a].l.PB(b);
    tab[b].l.PB(a);
    a = Find(a);
    b = Find(b);
    if(a == b)
        return 0;
    if(tab[a].size < tab[b].size)
        swap(a, b);
    tab[a].size += tab[b].size;
    tab[a].ile += tab[b].ile;
    tab[b].o = a;
    return 1;
}

void reset(int nr)
{
    tab[nr].o = nr;
    tab[nr].size = 1;
    tab[nr].ile = 1;
}

void daj_kompy(int nr)
{
    if(tab[nr].ma_kompa)
        return;
    tab[nr].ma_kompa = 1;
    reset(nr);

    for(auto el : tab[nr].l)
        daj_kompy(el);
    tab[nr].l.clear();
}

int solve()
{
    char type;
    int a, b, c, d;
    cin >> n >> m;
    ID = n+1;

    FOR(i, 1, n)
    {
        gdzie[i] = i;
        reset(i);
    }

    forr(j, m)
    {
        cin >> type;
        if(type == '+')
        {
            cin >> a >> b;
            a = gdzie[a];
            b = gdzie[b];
            if(tab[a].ma_kompa)
                daj_kompy(b);
            else if(tab[b].ma_kompa)
                daj_kompy(a);
            else if(Find(a) == Find(b))
                daj_kompy(a);
            else
                Union(a, b);
        }
        else if(type == '-')
        {
            cin >> c;
            tab[Find(gdzie[c])].ile--;
            reset(ID);
            gdzie[c] = ID++;
        }
        else // type == '?'
        {
            cin >> d;
            d = gdzie[d];
            if(tab[d].ma_kompa)
                cout << '1';
            else if(tab[Find(d)].ile > 1)
                cout << '?';
            else    
                cout << '0';
        }
        /*
        cout << "<";
        FOR(i, 1, n)
        {
            if(tab[gdzie[i]].ma_kompa)
                cout << '1';
            else if(tab[gdzie[i]].l.size() > 0)
                cout << '?';
            else    
                cout << '0';
        }
        cout << ">" << '\n';
        /**/
    }

    cout << '\n';

    return 0;
}

int main()
{
    std::ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    solve();

    return 0;
}