pokemonDon'tGo

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Scanner;
import java.util.stream.Collectors;

public class pokemonDontGo {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);

        List<Integer> line = Arrays.stream(scan.nextLine()
                .split("\\s+"))
                .map(Integer::parseInt)
                .collect(Collectors.toList());

        List<Integer> result = new ArrayList<>();

        while (line.size() > 0) {

            int index = Integer.parseInt(scan.nextLine());

            if (index < 0) {

                result.add(line.get(0));
                line.set(0, line.get(line.size() - 1));

                int value = 0;
                value = line.get(0);

                setValue(line, value);
            } else if (index > line.size() - 1) {

                result.add(line.get(line.size() - 1));
                line.set(line.size() - 1, line.get(0));

                int value = 0;
                value = line.get(line.size() - 1);

                setValue(line, value);
            } else {

                int value = 0;
                value = line.get(index);
                result.add(line.get(index));
                line.remove(index);

                setValue(line, value);
            }
        }
        int sum = 0;
        for (Integer integer : result) {
            sum += integer;
        }
        System.out.println(sum);
    }

    private static void setValue(List<Integer> line, int value) {
        for (int i = 0; i < line.size(); i++) {
            if (line.get(i) <= value) {
                line.set(i, value + line.get(i));
            } else if (line.get(i) > value) {
                line.set(i, line.get(i) - value);
            }
        }
    }
}