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

namespace ConsoleApp14
{
    class Program
    {
        static int m = 3;
        static int k = 1;
        static int red1 = 0;
        static int red2 = 0;
        static int red3 = 0;
        static Random r = new Random();
        static readonly object locker = new object();
        static int najmanji()
        {
            if(red1<red2)
            {
                return 1;
            }
            else if(red2<red3)
            {
                return 2;
            }
            else if(red3<red1)
            {
                return 3;
            }
            else
            {
                return (r.Next(1, 3));
            }
        }
        static void salter1()
        {
            Console.WriteLine("Korinsik je stao na salter1");
            Thread.Sleep(200);

        }
        static void salter2()
        {
            Console.WriteLine("Korinsik je stao na salter2");
            Thread.Sleep(200);

        }
        static void salter3()
        {
            Console.WriteLine("Korinsik je stao na salter3");
            Thread.Sleep(200);

        }
        static void dolazak(int m)
        {
            Console.WriteLine("Korisnik je dosao u postu");
            Thread.Sleep(100);
            int najkraciRed = najmanji();
            if (najkraciRed == 1 && red1<m)
            {
                lock (locker)
                {
                    red1++;
                }
                salter1();
                lock (locker)
                {
                    red1--;
                }
            }
            if (najkraciRed == 2 && red2<m)
            {
                lock (locker)
                {
                    red2++;
                }
                salter2();
                lock (locker)
                {
                    red2--;
                }
            }
            if (najkraciRed == 3 && red3<m)
            {
                lock (locker)
                {
                    red3++;
                }
                salter3();
                lock (locker)
                {
                    red3--;
                }
            }
        }


        static void Main(string[] args)
        {
            Console.WriteLine("Upisite m");
            int m = int.Parse(Console.ReadLine());
            while(k==1)
            {
                Thread posta = new Thread (() => dolazak(m));
                posta.Start();
            }
            Console.ReadKey();
        }
    }
}