import java.util.HashMap;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Scanner;
 
public class Main {
    public static void main(String[] args) throws Exception {
        HashMap<String, Integer> data = new HashMap<String, Integer>();
        InputStreamReader isr = new InputStreamReader(System.in);
        BufferedReader br = new BufferedReader(isr);
        Scanner scan = new Scanner(System.in);
 
        for (int i = 0; i < 4; i++) {
            try {
                data.put(br.readLine(), scan.nextInt());
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        System.out.println(data.get(br.readLine()));
    }
}
 

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