using System;
using System.Collections.Generic;
using System.Linq;
namespace _05._Bomb_Numbers
{
    class Program
    {
        static void Main(string[] args)
        {
            List<int> sequence = Console.ReadLine().Split().Select(int.Parse).ToList();
            int[] specialNumber = Console.ReadLine().Split().Select(int.Parse).ToArray();
            int bombNumber = specialNumber[0];
            int powerNumber = specialNumber[1];
            RemoveLeftPart(sequence, bombNumber, powerNumber);
            RemoveRightPart(sequence, bombNumber, powerNumber);
            sequence.RemoveAll(x => x == bombNumber);
            Console.WriteLine(sequence.Sum());



        }


        private static List<int> RemoveLeftPart(List<int> sequence,int bombNumber,int powerNumber)
        {
            for (int i = 0; i < sequence.Count; i++)
            {
                if (bombNumber == sequence[i])
                {

                     if (i - powerNumber < 0)
                    {
                        sequence.RemoveRange(0, powerNumber);
                    }
                    else
                    {
                        sequence.RemoveRange(i - powerNumber, powerNumber);
                    }

                }
            }


            return sequence;
        }

        private static List<int> RemoveRightPart(List<int> sequence, int bombNumber, int powerNumber)
        {
            for (int i = 0; i < sequence.Count; i++)
            {
                if (bombNumber == sequence[i])
                {

                    if(i + powerNumber > sequence.Count - 1)
                    {
                        sequence.RemoveRange(i + 1, (sequence.Count - 1) - i);
                    }
                    else
                    {
                        sequence.RemoveRange(i + 1, powerNumber);
                    }

                }
            }


            return sequence;
        }

    }
}