#include <iostream>
#include <fstream>
#include <vector>
using namespace std;

int main()
{
    ifstream fin("heapuri.in");
    ofstream fout("heapuri.out");
    int N,i,x,k,t=0,min=1000000001;
    vector<int> v;
    fin>>N;
    for(i=1;i<=N;i++)
    {
        fin>>k;
        if(k==1 || k==2)
        {
            fin>>x;
            t++;
            if(k==1)
            {
                v.push_back(x);
            }
            else
            {
                v.erase(v.begin()+t);
            }
            if(x<min)
            {
                min=x;
            }
        }
        else
        {
            fout<<min<<endl;
        }

    }
    fin.close();
    fout.close();
    return 0;
}