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#include<bits/stdc++.h>
using namespace std;
const int N = 1500005;
int label[N];
int lider[N];
int mode[N];
int sz[N];
int act_label;
int f(int a)
{
    if(lider[a] != a)
        lider[a] = f(lider[a]);
    return lider[a];
}
void u(int a, int b)
{
    int c = f(a), d = f(b);
    if(c == d)
        mode[c] = 1;
    else
    {
        lider[c] = d;
        sz[d] += sz[c];
        if(mode[c] == 1 || mode[d] == 1)
            mode[d] = 1;
        else
            mode[d] = 0;
    }
}
int main()
{
	ios_base::sync_with_stdio(0);
	cin.tie(0);
    int a, t;
    cin>>a>>t;
    for(int x = 1; x <= a; x++)
    {
        label[x] = x;
        lider[x] = x;
        sz[x] = 1;
    }
    act_label = a + 1;
    while(t--)
    {
        char b;
        cin>>b;
        if(b == '?')
        {
            int c;
            cin>>c;
            int pom = f(label[c]);
            if(mode[pom] == 1)
                cout<<1;
            else if(sz[pom] == 1)
                cout<<0;
            else
                cout<<'?';
        }
        else if(b == '+')
        {
           int c, d;
           cin>>c>>d;
           u(label[c] ,label[d]);
        }
        else if(b == '-')
        {
            int c;
            cin>>c;
            sz[f(label[c])]--;
            label[c] = act_label;
            lider[act_label] = act_label;
            sz[act_label++] = 1;
        }
    }
	return 0;
}