Pokemon Evolution - GROUP

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

namespace PokemonEvolution
{
    class PokemonEvolution
    {
        class Evolution
        {
            public string EvolutionType { get; set; }
            public long EvolutionIndex { get; set; }

            public Evolution(string evolutionType, long evolutionIndex)
            {
                this.EvolutionType = evolutionType;
                this.EvolutionIndex = evolutionIndex;
            }
        }
        static void Main()
        {
            Dictionary<string, List<Evolution>> data = new Dictionary<string, List<Evolution>>();

            string input = Console.ReadLine();

            while (input != "wubbalubbadubdub")
            {
                string[] tokens = input.Split(new char[] { '-', '>', ' ' }, StringSplitOptions.RemoveEmptyEntries);

                string pokemonName = tokens[0];

                /*if (tokens.Length == 1 && data.ContainsKey(pokemonName))
                {
                    PrintPokemons(pokemonName, data);
                }*/
                if (tokens.Length == 1)
                {
                    if(data.ContainsKey(pokemonName))
                    {
                        PrintPokemons(pokemonName, data);
                    }
                }

                else
                {
                   // try
                   // {
                        string evolutionType = tokens[1];
                        long evolutionIndex = long.Parse(tokens[2]);

                        Evolution evolution = new Evolution(evolutionType, evolutionIndex);

                        if (!data.ContainsKey(pokemonName))
                        {
                            data.Add(pokemonName, new List<Evolution>());
                        }
                        data[pokemonName].Add(evolution);
                   // }
                   // catch
                   // {

                   // }

                }
                input = Console.ReadLine();
            }

            foreach (var pokemonData in data)
            {
                string pokemonName = pokemonData.Key;
                List<Evolution> evolutions = pokemonData.Value;

                Console.WriteLine($"# {pokemonName}");

                foreach (Evolution evolutionData in evolutions.OrderByDescending(e => e.EvolutionIndex))
                {
                    string evolutionType = evolutionData.EvolutionType;
                    long evolutionIndex = evolutionData.EvolutionIndex;

                    Console.WriteLine($"{evolutionType} <-> {evolutionIndex}");
                }
            }

        }

        private static void PrintPokemons(string pokemonName, Dictionary<string, List<Evolution>> data)
        {
            foreach (var item in data.Where(k => k.Key == pokemonName))
            {
                Console.WriteLine($"# {pokemonName}");

                List<Evolution> evolutionData = item.Value;

                foreach (var evolution in evolutionData)
                {
                    string evolutionType = evolution.EvolutionType;
                    long evolutionIndex = evolution.EvolutionIndex;

                    Console.WriteLine($"{evolutionType} <-> {evolutionIndex}");
                }
            }
        }
    }
}