BombNumbers

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


namespace BombNumbers
{
    class MainClass
    {
        public static void Main(string[] args)
        {

            List<int> numbers = Console.ReadLine().Split().Select(int.Parse).ToList();

            string command = Console.ReadLine();
            string[] commandArray = command.Split();
            int specialNumber = int.Parse(commandArray[0]);
            int power = int.Parse(commandArray[1]);
            while(numbers.Contains(specialNumber))
            {
                int bombIndex = numbers.IndexOf(specialNumber);
                int leftIndex = Math.Max(0, bombIndex - power);
                int rightIndex = Math.Min(numbers.Count - 1, bombIndex + power);

                numbers.RemoveRange(leftIndex, rightIndex - leftIndex + 1);
            }

            Console.WriteLine(numbers.Sum());
        }
    }
}