import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

/**
 * ----------------------------
 * Project: APS
 * Package: dopolnitelni_casovi.linkedlists
 * Created on: 27.5.2016, 23:41
 * IDE: IntelliJ IDEA
 * ----------------------------
 * Author: Damjan Miloshevski
 * Web: http://damjanmiloshevski.mk/
 * Phone: +389 (0)78 566 409
 * E-mail: d.miloshevski@gmail.com; contact@damjanmiloshevski.mk
 * Skype: damjan.milosevski
 * LinkedIn: https://mk.linkedin.com/in/damjanmiloshevski
 * GitHub: https://github.com/damsii
 * Bitbucket: https://bitbucket.org/dam_si
 */
public class SLLKompanija {
    public static void main(String[] args) throws IOException {
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        List<Vraboten> kompanija = new ArrayList<>();
        try {
            int N = Integer.parseInt(in.readLine());
            for (int i = 0; i < N; i++) {
                int id = Integer.parseInt(in.readLine());
                int plata = Integer.parseInt(in.readLine());
                kompanija.add(new Vraboten(id, plata));
            }
            int plata = Integer.parseInt(in.readLine());
            List<Vraboten> novi = removeLowerThan(kompanija, plata);
            Collections.sort(novi, Collections.reverseOrder());
            if (novi.isEmpty()) {
                System.out.println("nema");
            } else {
                for (Vraboten v : novi) {
                    System.out.println(v.toString());
                }
            }

        } catch (NumberFormatException e) {
            System.err.println("Pogresen vlez!");
        }
    }

    static List<Vraboten> removeLowerThan(List<Vraboten> employees, int amount) {
        List<Vraboten> company = new ArrayList<>();
        for (Vraboten vraboten : employees) {
            if (vraboten.getPlata() >= amount) {
                company.add(vraboten);
            }
        }
        return company;
    }
}

class Vraboten implements Comparable<Vraboten> {
    private int ID;
    private int plata;

    public Vraboten(int ID, int plata) {
        this.ID = ID;
        this.plata = plata;
    }

    public int getID() {
        return ID;
    }

    public int getPlata() {
        return plata;
    }

    @Override
    public String toString() {
        return String.format("%d %d", ID, plata);
    }

    @Override
    public int compareTo(Vraboten o) {
        return Integer.compare(ID, o.ID);
    }
}