#include <bits/stdc++.h>
#define int long long
using namespace std;
ifstream in ("heapuri.in");
ofstream out ("heapuri.out");
main ()
{
    int q;
    in >> q;
    multiset <int> seti;
    vector <int> v;
    for (int i = 1;i<=q;++i)
    {
        int type;
        in >> type;
        if (type == 1)
        {
            int a;
            in >> a;
            v.emplace_back(a);
            seti.insert(a);
        }
        else if (type == 2)
        {
            int k;
            in >> k;
            seti.erase(seti.find(v[k - 1]));
        }
        else
            out << *(seti.begin()) << '\n';
    }
    return 0;
}