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

namespace _5.Bomb_Numbers
{
    class Program
    {
        static void Main(string[] args)
        {
            var Num = Console.ReadLine().Split(' ').Select(int.Parse).ToList();
            var BombPower = Console.ReadLine().Split(' ').Select(int.Parse).ToList();
            var total = 0;
            var currPosition = 0;

            for (int i = 0; i < Num.Count; i++)
            {
                if (Num[i] == BombPower[0])
                {
                    for (int leftSide = 0; leftSide < BombPower[1]; leftSide++)
                    {
                        if (leftSide == 0)
                        {
                            currPosition = i;
                        }

                        if (Num[0] == BombPower[0])
                        {
                            break;
                        }

                        Num.RemoveAt(currPosition - 1);
                        currPosition--;


                    }

                    for (int rightSide = 0; rightSide < BombPower[1]; rightSide++)
                    {
                        if (Num[Num.Count - 1] == BombPower[0])
                        {
                            break;
                        }
                        Num.RemoveAt(currPosition + 1);

                    }
                }
            }

            foreach (var number in Num)
            {
                if (number != BombPower[0])
                {
                total += number;
                }
            }
            Console.WriteLine(total);

        }
    }
}