Point of figures

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Point_of_Figures
{
    class Program
    {
        static void Main(string[] args)
        {
            var h = int.Parse(Console.ReadLine());
            var x = int.Parse(Console.ReadLine());
            var y = int.Parse(Console.ReadLine());
            if((x>h)&&(x<2*h)&&(y==h))
            {
                Console.WriteLine("inside");
            }
            else if ((x >= h) && (x <= 2 * h)&&(y>=h)&&(y<=4*h))
            {
                if ((x > h) && (x < 2 * h) && (y > h) && (y < 4 * h))
                {
                    Console.WriteLine("inside");
                }
                else if ((x >= h) && (x <= 2 * h) || (y >= h) && (y <= 4 * h))
                {
                    Console.WriteLine("border");
                }
                else if((x>=0)&&(x<=3*h)&&(y>=0)&&(y<=h))
                {
                    if ((x > 0) && (x < 3 * h) && (y > 0) && (y < h))
                    {
                        Console.WriteLine("inside");
                    }
                    else if ((x >= 0) && (x <= 3 * h) || (y >= 0) && (y <= h))
                    {
                        Console.WriteLine("border");
                    }
                    else
                    {
                        Console.WriteLine("outside");
                    }
                }
            }
        }
    }
}