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#include<iostream>
#include<unordered_set>
#include<vector>

using namespace std;

const int max_n = 3e5;
int n, q, set_id[max_n], computer[max_n]{0}, in_set[max_n]{0};
vector<int>id[max_n];
unordered_set<int>ava;

void connect(int a, int b){
    int s_a = set_id[a], s_b = set_id[b];
    if(in_set[s_a] > in_set[s_b]){//b->a
        computer[s_a] += computer[s_b]+1;
        computer[s_b] = 0;
        in_set[s_a] += in_set[s_b];
        in_set[s_b] = 0;
        ava.insert(s_b);
        int s = id[s_b].size();
        for(int i=s-1; i>=0; i--){
            if(set_id[id[s_b][i]] == s_b){
                set_id[id[s_b][i]] = s_a;
                id[s_a].push_back(id[s_b][i]);
            }
            id[s_b].pop_back();
        }
    }
    else{
        computer[s_b] += computer[s_a]+1;
        computer[s_a] = 0;
        in_set[s_b] += in_set[s_a];
        in_set[s_a] = 0;
        ava.insert(s_a);
        int s = id[s_a].size();
        for(int i=s-1; i>=0; i--){
            if(set_id[id[s_a][i]] == s_a){
                set_id[id[s_a][i]] = s_b;
                id[s_b].push_back(id[s_a][i]);
            }
            id[s_a].pop_back();
        }
    }
}

void del(int a){
    int s_a = set_id[a], new_s_a = *ava.begin();
    ava.erase(new_s_a);
    computer[s_a]--;
    in_set[s_a]--;
    set_id[a] = new_s_a;
    computer[new_s_a]=0;
    in_set[new_s_a]=1;
    id[new_s_a].push_back(a);
}
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    cin>>n>>q;
    for(int i=0; i<n; i++){
        set_id[i] = i;
        in_set[i] = 1;
        id[i].push_back(i);
    }
    int a, b;
    char x;
    for(int i=0; i<q; i++){
        cin>>x>>a; --a;
        if(x == '?'){
            if(computer[set_id[a]] >= in_set[set_id[a]])cout<<'1';
            else if(computer[set_id[a]] == 0)cout<<'0';
            else cout<<'?';
        }
        else if(x == '+'){
            cin>>b; --b;
            if(set_id[a] != set_id[b])connect(a,b);
            else computer[set_id[a]]++;
        }
        else{
            del(a);
        }
    }
    return 0;
}