bombs

using System;
using System.Linq;

class Program
{
    static void Main()
    {
        string text = Console.ReadLine();
        int length = text.Length;
        int width = int.Parse(Console.ReadLine());
        int height = (length / width);
        height += text.Length % width == 0 ? 0 : 1;

        string bombs = Console.ReadLine();
        int[] bombCols = bombs.Split(' ').Select(int.Parse).ToArray();

        int[] nbombCols = bombCols.Distinct().ToArray();

        //for (int i = 0; i < nbombCols.Length; i++)
        //{
        //    Console.WriteLine(nbombCols[i]);
        //}

        char[,] arr = new char[height, width];

        int index = 0;
        for (int i = 0; i < height; i++)
        {
            for (int j = 0; j < width; j++)
            {
                arr[i, j] = text[index++];

                if (index >= length)
                {
                    break;
                }
            }
        }
        for (int i = 0; i < bombCols.Length; i++)
        {
            int bomb = int.Parse(bombCols[i].ToString());
            for (int b = 0; b < height; b++)
            {
                int row = b;
                int col = bomb;
                if (arr[b, bomb] == ' ')
                {
                    continue;
                }

                arr[b, bomb] = ' ';

                if (b + 1 < height)
                {
                    if (arr[b + 1, bomb] == ' ')
                    {
                        break;
                    }
                }
            }
        }
        /*
        for (int i = 0; i < bombCols.Length; i++)
        {
            if (bombCols[i] == -1)
            {
                continue;
            }
            for (int j = 0; j < height; j++)
            {
                if (arr[j, bombCols[i]] == ' ' && j > 0)
                {
                    break;
                }
                else
                {
                    arr[j, bombCols[i]] = ' ';
                }
            }
        }*/


        for (int i = 0; i < height; i++)
        {
            for (int j = 0; j < width; j++)
            {
                char letter = arr[i, j];
                if (letter != '\0')
                {
                    Console.Write(arr[i, j]);
                }
            }
        }
    }
}