#include <bits/stdc++.h>
#define for0(i, n) for(int i = 0; i < n; i++)
#define for1(i, n) for(int i = 1; i <= n; i++)
#define pb push_back
#define mp make_pair
#define all(v) v.begin(), v.end()
#define V vector<int>
#define VP vector<pair<int, int> >
#define clr(A, x) memset(A, x, sizeof(A))
#define cpy(A, B) memcpy(A, B, sizeof(B))
#define g(s) getline(cin, s) ///ai grija la fin/cin ///
#define FASTIO ios_base::sync_with_stdio(0)
const long long INFLL = (1LL<<62);
const int INFINT = 2000000000;
typedef long long ll;
typedef unsigned long long ull;
using namespace std;
/*template <typename T>
string to_string(const T& n){
    ostringstream os;
    os << n;
    return os.str();
}*/

/*void invers_modular(int a, int b, int &d, int &x, int &y)
{
    if(!b)
    {
        d=a;
        x=1;
        y=0;
        return ;
    }
    int x0, y0;
    invers_modular(b, a%b, d, x0, y0);
    x=y0;
    y=x0-a/b*y0;
}*/ // daca x<0 se aduna cu mod pana e mai mare, x fiind rezultatul

/*ull putere(ull baza, ull exponent, ull MOD)
{
    if(exponent == 0) return 1;
    if(exponent % 2 == 0) return putere((baza * baza) % MOD, exponent / 2, MOD) % MOD;
    return ((baza % MOD) * (putere(baza, exponent - 1, MOD) % MOD) % MOD);
}*/
ifstream fin("heapuri.in"); /// modifica cu numele corespunzator
ofstream fout("heapuri.out"); /// modifica cu numele corespunzator

const int NMAX = 2 * 1e5 + 3;

int n, nr, v[NMAX];
multiset<int> heap;

int main()
{
    fin >> n;
    for1(i, n)
    {
        int q;
        fin >> q;
        if(q == 1)
        {
            int element;
            fin >> element;
            heap.insert(element);
            v[++nr] = element;
        }
        else if(q == 2)
        {
            int sterg;
            fin >> sterg;
            heap.erase(v[sterg]);
        }
        else fout << *heap.begin() << '\n';
    }

    return 0;
}