using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

class MoreExercises
{
    static void Main()
    {
        var seqInt = Console.ReadLine().Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries).Select(int.Parse).ToList();
        var listToSum = new List<int>();
        var removedInt = 0;
        while (true)
        {
            int index = int.Parse(Console.ReadLine());
            if (index < 0)
            {
                removedInt = seqInt[0];
                listToSum.Add(removedInt);
                seqInt[0] = seqInt[seqInt.Count - 1];
            }
            else if (index > seqInt.Count - 1)
            {
                removedInt = seqInt[seqInt.Count - 1];
                listToSum.Add(removedInt);
                seqInt[seqInt.Count - 1] = seqInt[0];
            }
            else
            {
                removedInt = seqInt[index];
                listToSum.Add(removedInt);
                seqInt.RemoveAt(index);
            }

            for (int i = 0; i < seqInt.Count; i++)
            {
                if (seqInt[i] <= removedInt)
                {
                    seqInt[i] = seqInt[i] + removedInt;
                }
                else if (seqInt[i] > removedInt)
                {
                    seqInt[i] = seqInt[i] - removedInt;
                }
            }
            if (seqInt.Count == 0)
            {
                break;
            }
        }
        Console.WriteLine(listToSum.Sum());
    }
}