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#include<cstdio>

#define N 300005

class node {
public:
    node* parent;
    int rank;
    bool kompletny;
    int size;

    void setKompletny() {
        kompletny = true;
    }

    void increaseSize() {
        //printf("x");
        size++;
    }

    void decreaseSize() {
        size--;
    }
};

node* tab[N];

static node* find(node* start) {
    node* current = start;

    while (current->parent != current) {
        current = current->parent;
    }

    node* current2 = start;
    while (current2->parent != current2) {
        node* next = current2->parent;
        current2->parent = current;
        current2 = next;
    }

    return current;
}

static node* makeSet() {
    auto result = new node();
    result->parent = result;
    result->kompletny = 0;
    result->rank = 0;
    result->size = 0;

    return result;
}

static node* makeSetKompletny() {
    node* result = makeSet();
    result->setKompletny();

    return result;
}

static void unionSet(node* x, node* y) {
    bool shouldSetKompletny = x->kompletny || y->kompletny;

    if (x->rank > y->rank) {
        y->parent = x;
        x->size += y->size;
    }
    else {
        x->parent = y;
        y->size += x->size;
        if (x->rank == y->rank) {
            y->rank++;
        }
    }

    if (shouldSetKompletny) {
        x->setKompletny();
        y->setKompletny();
    }
}

int main() {
    int n, q;

    scanf("%d %d\n", &n, &q);

    for (int i = 0; i < q; i++) {
        char c = getc(stdin);
        if (c == '?') {
            int d;
            scanf("%d\n", &d);

            if (tab[d] == NULL) {
                printf("0");
            }
            else {
                auto f = find(tab[d]);
                if (f->kompletny) {
                    printf("1");
                }
                else {
                    //printf("(%d)", f->size);
                    if (f->size == 1) {
                        printf("0");
                    }
                    else {
                        printf("?");
                    }
                }
            }
        }
        else if (c == '+') {
            int a, b;
            scanf("%d %d\n", &a, &b);

            if (a == b) {
                if (tab[a] == NULL) {
                    tab[a] = makeSetKompletny();
                }
                else {
                    auto f = find(tab[a]);
                    f->setKompletny();
                }
            }
            else {
                if (tab[a] == NULL && tab[b] == NULL) {
                    auto s = makeSet();
                    tab[a] = s;
                    tab[b] = s;
                    //printf("<%d,%d>", a, b);
                    s->increaseSize();
                    s->increaseSize();
                }
                else if (tab[a] == NULL && tab[b] != NULL) {
                    auto f = find(tab[b]);
                    tab[a] = f;
                    //printf("<%d>", a);
                    f->increaseSize();
                }
                else if (tab[a] != NULL && tab[b] == NULL) {
                    auto f = find(tab[a]);
                    tab[b] = f;
                    //printf("<%d>", b);
                    f->increaseSize();
                }
                else {
                    auto f1 = find(tab[a]);
                    auto f2 = find(tab[b]);

                    if (f1 == f2) {
                        f1->setKompletny();
                    }
                    else {
                        unionSet(f1, f2);
                    }
                }
            }
        }
        else if (c == '-') {
            int c;
            scanf("%d\n", &c);

            auto f = find(tab[c]);
            f->decreaseSize();

            tab[c] = NULL;
        }
    }

    return 0;
}