P03 (C# Shell App Paste)

//Disclaimer: The creator of 'C# Shell (C# Offline Compiler)' is in no way responsible for the code posted by any user.
using System;
using System.IO;
using System.Linq;
using System.Collections.Generic;

namespace CSharp_Shell
{

    public static class Program
    {

        public static void Main()
        {
           var journal = Console.ReadLine().Split(new []{',',' '},StringSplitOptions.RemoveEmptyEntries).ToArray();


           while(true)
           {
            var input = Console.ReadLine().ToLower();

            if(input == "exit")
            {
                break;
            }

            var commands = input.Split(" - ");
            string command = commands[0];
            string item = commands[1];

            if(command =="collect")
            {
                var newJournal = new string[journal.Length+1];

                for(int i=0;i<journal.Length;i++)
                {


                    if(item == journal[i])
                    {
                        break;
                    }
                    newJournal[i]=journal[i];
                }
                newJournal[newJournal.Length-1]=item;
                journal=newJournal;
            }

            if(command == "drop")
            {

                var newJournal = new string[journal.Length-1];
                for(int i=0;i<journal.Length;i++)
                {

                    if(item == journal[i])
                    {
                        break;
                    }
                    newJournal[i]=journal[i];
                }
                journal=newJournal;
            }

            if(command=="combine")
            {

            }

            if(command=="renew")
            {

            }

           }
           for(int  i=0;i<journal.Length-1;i++)
           {
            Console.Write(journal[i] + ", ");

           }
            Console.Write(journal[journal.Length-1]);
            Console.WriteLine(" ");
        }
    }
}