using System;
using System.Collections.Generic;
using System.Linq;
namespace ConsoleApp186
{
    class Program
    {
        static void Main(string[] args)
        {
            List<int> numbers = Console.ReadLine().Split().Select(int.Parse).ToList();

            PrintElements(numbers);


        }

        private static void PrintElements(List<int> numbers)
        {
            int removedSum = 0;
            while (numbers.Count!= 0)
            {
                if (numbers.Count == 0)
                {
                    break;
                }
                int index = int.Parse(Console.ReadLine());
                int removedElement = 0;

                if (index < 0)
                {

                    numbers.RemoveAt(numbers[0]);
                    numbers.Insert(numbers[0], numbers[numbers.Count-1]);


                    for (int i = 0; i < numbers.Count; i++)
                    {
                        removedElement = numbers[index];
                        if (numbers[i] <= removedElement)
                        {
                            numbers[i] = numbers[i] + numbers[index];
                        }
                        else
                        {
                            numbers[i] = numbers[i] - numbers[index];
                        }
                    }
                    removedSum += removedElement;
                }
                else if (index >= numbers.Count)
                {
                    numbers.RemoveAt(numbers.Count-1);
                    numbers.Insert(numbers.Count-1, numbers[numbers[0]]);


                    for (int i = 0; i < numbers.Count; i++)
                    {
                        removedElement = numbers[index];
                        if (numbers[i] <= removedElement)
                        {
                            numbers[i] = numbers[i] + numbers[index];
                        }
                        else
                        {
                            numbers[i] = numbers[i] - numbers[index];
                        }

                    }
                    removedSum += removedElement;
                }
                else
                {
                    numbers.RemoveAt(index);


                    for (int i = 0; i < numbers.Count; i++)
                    {
                        removedElement = numbers[index];
                        if (numbers[i] <= removedElement)
                        {
                            numbers[i] = numbers[i] + numbers[index];
                        }
                        else
                        {
                            numbers[i] = numbers[i] - numbers[index];
                        }
                    }
                    removedSum += removedElement;


                }

            }
            Console.WriteLine(removedSum);
        }
    }
}