#include <iostream>
#include <vector>
using namespace std;
vector <int> v;
int main()
{
    int m;
    cin >> m;
    for(int i = 1; i <= m; i++)
    {
        int op;
        cin >> op;
        if(op == 1)
        {
            int x;
            cin >> x;
            v.push_back(x);
        }
        if(op == 2 && !v.empty())
            v.pop_back();
        if(op == 3)
        {
            int x;
            cin >> x;
            int nr = 0;
            for(auto it : v)
                if(it <= x)
                    nr++;
            if(nr == 0)
                cout << "Empty";
            else
                for(auto it : v)
                    if(it <= x)
                        cout << it << " ";
            cout << "\n";
        }
    }
    return 0;
}