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#include <bits/stdc++.h>

using namespace std;


bool vis[301000];
int nr[2001000];
int sise[2001000];

const int MAKS=300001;

int wind(int x)
{
    if(nr[x]!=x)return nr[x]=wind(nr[x]);
    return x;
}


int main()
{
    int n,q,a,b,counter=MAKS;
    string s="";
    cin>>n>>q;
    for(int i=MAKS+1;i<=2*1e6;i++)nr[i]=i;
    for(int i=0;i<q;i++)
    {
        char c;
        cin>>c;
        if(c=='+')
        {
            cin>>a>>b;
            if(a==b)
            {
                if(wind(a))vis[wind(a)]=true;
                else
                {
                    counter++;
                     nr[a]=counter;
                    vis[counter]=true;
                    sise[counter]++;
                }
            }
            else if(wind(a)==wind(b) && wind(a))
            {
                vis[wind(a)]=true;
            }
            else if(!wind(a) && !wind(b))
            {
                counter++;
                nr[a]=counter;
                nr[b]=counter;
                sise[counter]+=2;
            }
            else
            {
                if(wind(a) && !wind(b))
                {
                    sise[wind(a)]++;
                    nr[b]=wind(a);
                }
                else if(!wind(a) && wind(b))
                {
                    sise[wind(b)]++;
                    nr[a]=wind(b);
                }
                else
                {
                    sise[wind(b)]+=sise[wind(a)];
                    vis[wind(b)]=max(vis[wind(b)],vis[wind(a)]);
                    nr[wind(a)]=wind(b);
                }
            }
        }
        else if(c=='?')
        {
            cin>>a;
            //cout<<a<<"DAS"<<wind(a)<<endl;
            if(vis[wind(a)])s+='1';
            else if(wind(a)>0 && sise[wind(a)]>1)s+='?';
            else s+='0';
        }
        else
        {
            cin>>a;
            sise[wind(a)]--;
            nr[a]=0;
        }
    }
    cout<<s;
}