CODEPhoenixOscarRomeoNovember

using System;
using System.Collections.Generic;
using System.Linq;

namespace _03.CODEPhoenixOscarRomeoNovember
{
    public class StartUp
    {
        public static void Main()
        {
            Dictionary<string, List<string>> squads = new Dictionary<string, List<string>>();
            List<string> check = new List<string>();
            while (true)
            {
                string input = Console.ReadLine();
                if (input == "Blaze it!")
                {
                    break;
                }
                string creature = input.Substring(0, input.IndexOf('-') - 1).Trim();
                string squadMate = input.Substring(input.IndexOf('>') + 2).Trim();
                if (!squads.ContainsKey(creature))
                {
                    squads.Add(creature, new List<string>());
                    squads[creature].Add(squadMate);
                }
                else
                {
                    if (squads[creature].Contains(squadMate) || creature == squadMate)
                    {
                        continue;
                    }
                    else
                    {
                        squads[creature].Add(squadMate);
                    }
                }
                check.Add(squadMate + "" + creature);
                if (check.Contains(creature + "" + squadMate))
                {
                    squads[creature].Remove(squadMate);
                    squads[squadMate].Remove(creature);
                }
            }
            foreach (var squad in squads.OrderByDescending(x =>x.Value.Count))
            {
                Console.WriteLine($"{squad.Key} : {squad.Value.Count()}");
            }
        }
    }
}