Classes- Teamwork Projects

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

namespace ConsoleApp3
{
    class Team
    {
        public string Name { get; set; }
        public string Creator { get; set; }
        public List<string> Members { get; set; }

    }

    class Program
    {
        public static object Culture { get; private set; }

        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());
            var teams = new List<Team>();
            var creators = new List<string>();

            for (int i = 0; i < n; i++)
            {
                var creatingTeam = Console.ReadLine().Split('-').ToList();
                string creator = creatingTeam[0];
                string team = creatingTeam[1];


                if (teams.Any(x=>x.Name==team))
                {
                    Console.WriteLine($"Team {team} was already created!");
                }
                else if (creators.Contains(creator))
                {
                    Console.WriteLine($"{creator} cannot create another team!");
                }
                else
                {
                    var newteam = new Team
                    {
                        Name = team,
                        Creator = creator,
                        Members = new List<string>()

                    };

                    teams.Add(newteam);
                    creators.Add(creator);
                    Console.WriteLine($"Team {team} has been created by {creator}!");
                }


            }

            while (true)
            {
                var input = Console.ReadLine().Split(new string[] { "->" }, StringSplitOptions.RemoveEmptyEntries).ToList();

                if (input[0] == "end of assignment")
                {
                    break;
                }

                string member = input[0];
                string teamToJoin = input[1];

                bool isMember = false;

                foreach (var team in teams)
                {
                    if (team.Members.Contains(member))
                    {
                        isMember = true;
                        break;
                    }
                }

                var isTeam = teams.FirstOrDefault(x => x.Name == teamToJoin);

                if (isTeam == null)
                {
                    Console.WriteLine($"Team {teamToJoin} does not exist!");
                }
                else if (creators.Contains(member))
                {
                    Console.WriteLine($"Member {member} cannot join team {teamToJoin}!");
                }
                else if (isMember == true)
                {
                    Console.WriteLine($"Member {member} cannot join team {teamToJoin}!");
                }

                else
                {
                    isTeam.Members.Add(member);
                }



            }

            foreach (var team in teams.Where(x => x.Members.Count > 0).OrderByDescending(x => x.Members.Count).ThenBy(x => x.Name))
            {
                Console.WriteLine($"{team.Name}");
                Console.WriteLine($"- {team.Creator}");

                foreach (var members in team.Members.OrderBy(x => x))
                {
                    Console.WriteLine($"-- {members}");
                }

            }
            Console.WriteLine($"Teams to disband:");
            foreach (var item in teams.Where(x => x.Members.Count == 0).OrderBy(x => x.Name))
            {
                Console.WriteLine(item.Name);
            }


        }
    }
}