#include <algorithm>
#include <fstream>
#include <string>
#include <set>
using namespace std;

#define pb push_back
#define PB pop_back

ofstream fout ("nums.out");
ifstream fin ("nums.in");

struct cmp
{
    bool operator () (const string &a,const string &b) const
    {
        if (a.size ()!=b.size ())
            return a.size ()<b.size ();
        else
            return a<b;
    }
}; set <string,cmp> v;
int n;

int main ()
{
    set <string> :: iterator it;
    string :: iterator sit;
    int i,k,op;
    string s;
    
    fin>>n;
    for (i=1; i<=n; ++i)
    {
        fin>>op;
        if (op)
        {
            fin>>s;
            v.insert (s);
        }
        else
        {
            fin>>k;
            for (it=v.begin (); k>1; --k, ++it);
            s=*it;
            for (sit=s.begin (); *sit=='0' && sit!=s.end (); ++sit);
            for ( ; sit!=s.end (); ++sit)
                fout<<*sit;
            fout<<"\n";
        }
        
    }
    
    return 0;
}