import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

class Nev{
    public String nev;
    public String elotte;
    public String utana;

    public Nev(String nev, String elotte, String utana) {
        this.nev = nev;
        this.elotte = elotte;
        this.utana = utana;
    }

    public String getNev() {
        return nev;
    }

    public void setNev(String nev) {
        this.nev = nev;
    }

    public String getElotte() {
        return elotte;
    }

    public void setElotte(String elotte) {
        this.elotte = elotte;
    }

    public String getUtana() {
        return utana;
    }

    public void setUtana(String utana) {
        this.utana = utana;
    }

    @Override
    public String toString() {
        return "Nev{" + "nev=" + nev + ", elotte=" + elotte + ", utana=" + utana + '}';
    }


}

public class Tornasor {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        List<Nev> list = new ArrayList<>();
        List<String> list2 = new ArrayList<>();
        String[] token;

        int n = sc.nextInt();
        sc.nextLine();
        String elso_sor = sc.nextLine();
        list2.add(elso_sor);
        for (int i=0; i<n-1; i++)
        {
            String lines = sc.nextLine();
            token = lines.split(";");
            if (token.length == 3)
            list.add(new Nev(token[0], token[1], token[2]));
            else if (token.length == 2)
            list.add(new Nev(token[0], token[1], null));
        }
//        System.out.println(elso_sor);
        int j=0;
        for (int x=0; x<n; x++)
        {
            for (int i=0; i<n-1; i++)
            {
                if (list.get(i).elotte.equals(list2.get(j)))
                {
                    list2.add(list.get(i).nev);
                    j++;
                }
            }
        }
        for (int i=0; i<list2.size(); i++)
        {
            System.out.println(list2.get(i));
        }
    }
}