08.03.Teleport points мое

using System;
using System.Collections.Generic;
class TeleportPoints
{
    static void Main()
    {
        string input = "";
        for (int i = 0; i < 4; i++)
        {
            input += Console.ReadLine();
            input += " ";
        }
        string[] allPoints = input.Split(' ');
        double r = double.Parse(Console.ReadLine());
        double step = double.Parse(Console.ReadLine());

        double XA = double.Parse(allPoints[0]);//тези не трябва да се парсват в цикъл, защото имаме едно обхождане
        double YA = double.Parse(allPoints[1]);
        double XB = double.Parse(allPoints[2]);
        double YB = double.Parse(allPoints[3]);
        double XC = double.Parse(allPoints[4]);
        double YC = double.Parse(allPoints[5]);
        double XD = double.Parse(allPoints[6]);
        double YD = double.Parse(allPoints[7]);

        int counter = 0;

        for (double x = 0; x <= r; x += step)
        {
            for (double y = 0; y <= r; y += step)
            {
                if ((Math.Pow(x, 2) + Math.Pow(y, 2)) <= Math.Pow(r, 2))
                {
                    if ((x > XA && x < XB) && (y > YA && y < YC))
                    {
                        counter++;
                    }
                }
            }
            for (double y = -step; y >= -r; y -= step)
            {
                if ((Math.Pow(x, 2) + Math.Pow(y, 2)) <= Math.Pow(r, 2))
                {

                    if ((x > XA && x < XB) && (y > YA && y < YC))
                    {
                        counter++;
                    }
                }
            }
        }
        for (double x = -step; x >= -r; x -= step)
        {
            for (double y = 0; y <= r; y += step)
            {
                if ((Math.Pow(x, 2) + Math.Pow(y, 2)) <= Math.Pow(r, 2))
                {

                    if ((x > XA && x < XB) && (y > YA && y < YC))
                    {
                        counter++;
                    }
                }
            }
            for (double y = -step; y >= -r; y -= step)
            {
                if ((Math.Pow(x, 2) + Math.Pow(y, 2)) <= Math.Pow(r, 2))
                {

                    if ((x > XA && x < XB) && (y > YA && y < YC))
                    {
                        counter++;
                    }
                }
            }
        }
        Console.WriteLine(counter);
    }
}