05.00 Emergency Repairs

using System;
public class EmergencyRepairs
{
    public static void Main()
    {
        ulong wall = ulong.Parse(Console.ReadLine());
        int emergencyKits = int.Parse(Console.ReadLine());
        int attacks = int.Parse(Console.ReadLine());
        for (int i = 0; i < attacks; i++)
        {
            int attackedBit = int.Parse(Console.ReadLine());
            wall = wall & ~((ulong)1 << attackedBit);
        }
        for (int i = 0; i < 64; i++)
        {
            ulong bit = (wall >> i) & 1;
            if (bit == 0 && emergencyKits > 0)
            {
                bool foundHole = false;
                while (emergencyKits > 0 && i + 1 < 64 && ((wall >> (i + 1) & 1) == 0))
                {
                    wall = wall | ((ulong)1 << i);
                    i++;
                    emergencyKits--;
                    foundHole = true;
                }
                if (foundHole && emergencyKits > 0)
                {
                    wall = wall | ((ulong)1 << i);
                    emergencyKits--;
                }
            }
        }
        Console.WriteLine(wall);
    }
}