using System;
using System.Collections.Generic;
using System.Linq;

namespace apps
{
    class Program
    {
        static void Main()
        {
            //train
            // list of all numbers
            List<int> numbers = Console.ReadLine().Split(' ').Select(int.Parse).ToList();
            // {bob number} {power}
            List<int> BombAndPower = Console.ReadLine().Split(' ').Select(int.Parse).ToList();
            int BombNumber = BombAndPower[0];
            int BombPower = BombAndPower[1];
            // numbers equal to the bomb numbers are removed and {power} eleemnts around it are also removed


            for (int i=0; i< numbers.Count; i++) // go through all elements to see which is bombed
            {
                if (numbers[i] == BombNumber)
                {
                    int ElementBombed = i; // the found index of the bombed number

                    for (int y=0; y<BombPower; y++) // remove X elements from each side
                    {
                        if (ElementBombed - 1 >= 0)
                        {
                            numbers.RemoveAt(ElementBombed - 1); ElementBombed--;
                        }
                        if (ElementBombed+1 < numbers.Count)
                        {
                            numbers.RemoveAt(ElementBombed + 1);
                        }

                    }
                    numbers.RemoveAt(ElementBombed); // finally remove the bombed element
                }

            }

            int SumTotal = 0;
            for (int i = 0; i < numbers.Count; i++) { SumTotal += numbers[i]; } // sum the elements
            Console.WriteLine(SumTotal); // print the sum of the remaining elements

        }



        }


    }