using System;

using System.Linq;

​

public class Counter

    {

        private int count;

        private static int i_border, y_border;

​

        public static void SetBorder(int i, int y)

        {

            if (i >= 0 && y > 1)

            {

                i_border = i;

                y_border = y;

            }

            else

            {

                i_border = 0;

                y_border = 100;

            }

        }

        public static Counter operator ++(Counter counter)

        {

            counter.CountUp();

           return counter;

        }

        public static Counter operator --(Counter counter)

        {

            counter.CountDown();

            return counter;

        }

​

        public Counter(int count)

        {

            if (count > i_border && count <= y_border)

                this.count = count;

        }

        private int Count

        {

            get { return count; }

        }

​

        public void CountDown()

        {

            count--;

        }

        public void CountUp()

        {

            count++;

        }

        public void ShowCount()

        {

            Console.WriteLine("Текущее значение счетчика: " + Convert.ToString(Count, 16));

        }

    }

​

    public class Program

    {

        public static void Main(string[] args)

        {

            Counter.SetBorder(0, 65535);

            Counter cn = new Counter(31233);

            cn.ShowCount();

            cn.CountUp();

            cn++;

            cn.ShowCount();

            cn++;

            cn.ShowCount();

            cn--;

            cn.ShowCount();

            cn--;

            cn.ShowCount();

            cn--;

            cn.ShowCount();

        }

    }

​