#include <bits/stdc++.h>

using namespace std;
int cer ,n,i,mod,rest,j,x,ok;
vector <int> v[12350];
int main()
{
    freopen("hashuri.in", "r", stdin);
    freopen("hashuri.out", "w", stdout);
    scanf("%d",&n);
    mod=12345;
    for(i=1;i<=n;i++)
    {
        scanf("%d%d",&cer,&x);
        if(cer==1)
        {
            rest=x%mod;
            ok=0;
            for(j=0;j<v[rest].size();j++)
                if(v[rest][j]==x)
            {
                ok=1;
                break;
            }
            if(ok==0)
            v[rest].push_back(x);
        }
        else
            if(cer==2)
        {
            rest=x%mod;
            for(j=0;j<v[rest].size();j++)
                if(x==v[rest][j])
                {
                    v[rest].erase(v[rest].begin()+j);
                    break;
                }

        }
        else
            if(cer==3)
        {
            ok=0;
             rest=x%mod;
            for(j=0;j<v[rest].size();j++)
                if(v[rest][j]==x)
            {
                ok=1;
                break;
            }
            if(ok==0) printf("0\n");
            else
                printf("1\n");
        }
    }


    return 0;
}