#include <bits/stdc++.h>
using namespace std;
vector <int> v;
int main ()
{
    int i,m;
    cin>>m;
    for(i=1;i<=m;i++)
    {
        int op;
        cin>>op;
        if(op==1)
        {
            int x;
            cin>>x;
            v.push_back(x);
        }
        if(op==2) v.pop_back();
        if(op==3)
        {
            int x;
            cin>>x;
            if(x<v[0]) cout<<"Empty";
            else
            {
                int p=0;
                while(v[p]<=x)
                {
                    cout<<v[p]<<" ";
                    p++;
                }
            }
            cout<<endl;
        }

    }
}