import java.util.Scanner;

public class main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        if(n<=0){
            System.out.println("Invalid input");
        }
        else{
            ArrayList<String> str = new ArrayList<>();
            int[] arr = new int[n];
            for(int i=0;i<n;i++){
                newstr = sc.next();
                str.add(newstr);
                arr[i] = sc.nextInt();
            }
            String target = sc.next();
            if(!(str.contains(target))){
                System.out.print("-1");
            }
            else{
                for(int i=0;i<n;i++){
                    if(!(str[i].equals(target))){
                        System.out.println(str[i]+" "+arr[i]);
                    }
                }
            }
        }
        sc.close();
    }
}