#include <bits/stdc++.h>

using namespace std;

vector <int> v;
int n,m,x,ok;

int main()
{
    cin>>n;
    for(int i=1;i<=n;i++){

        cin>>m;
        if(m == 1){
            cin>>x;
            v.push_back(x);
        }
       else {if(m == 2){
            v.pop_back();

        }
        else if(m == 3){
            cin>>x;
            for(int j=0;j<v.size();j++)
                if(v[j] <= x){
                    cout<<v[j]<<" ";
                    ok=1;
        }
        if(ok == 0)
            cout<<"Empty";
        cout<<'\n';
        }}}



    return 0;
}