Exam 8. Inside the Building

using System;
using System.Globalization;
using System.Threading;

public class InsideTheBuilding
{
    public static void Main()
    {
        Thread.CurrentThread.CurrentCulture = CultureInfo.InvariantCulture;
        checked
        {
            int size = int.Parse(Console.ReadLine());

            for (int i = 0; i < 5; i++)
            {
                int pointX = int.Parse(Console.ReadLine());
                int pointY = int.Parse(Console.ReadLine());

                bool pointIsInsideBase = CheckThePointIsInsideTheBase(size, pointX, pointY);
                bool pointIsInsideTower = CheckThePointIsInsideTheTower(size, pointX, pointY);
                if (pointIsInsideBase || pointIsInsideTower)
                {
                    Console.WriteLine("inside");
                }
                else
                {
                    Console.WriteLine("outside");
                }
            }
        }
    }

    private static bool CheckThePointIsInsideTheTower(int size, int pointX, int pointY)
    {
        checked
        {
            int minX = size, maxX = 2 * size;
            int minY = size, maxY = 4 * size;
            bool isInside = pointX >= minX && pointX <= maxX && pointY >= minY && pointY <= maxY;
            return isInside;
        }
    }

    private static bool CheckThePointIsInsideTheBase(int size, int pointX, int pointY)
    {
        checked
        {
            int maxX = 3 * size;
            int maxY = size;
            bool isInside = pointX >= 0 && pointX <= maxX && pointY >= 0 && pointY <= maxY;
            return isInside;
        }
    }
}