using System;

using System.Collections.Generic;

​

public static class PokemonLookup {

    static Dictionary<string, string[]> dict = new Dictionary<string, string[]>();

    static public void Initialize() {

        string[] arr_Water =  {"Squirtle", "Tentacool", "Psyduck"};

        string[] arr_Grass = {"Bulbasaur", "Oddish", "Gloom"};

        string[] arr_Fire = {"Charmander", "Vulpix"};

        string[] arr_Fairy = {"Jigglypuff"};

        dict.Add("Water", arr_Water);

        dict.Add("Grass", arr_Grass);

        dict.Add("Fire", arr_Fire);

        dict.Add("Fairy", arr_Fairy);

    }

    static public string[] LookupByType(string pokemonType) {

        return dict[pokemonType];

    }

}

public class Program

{

    public static void Main()

    {

        PokemonLookup.Initialize();

        string type = "Water";

        Console.WriteLine("List of Pokemon with {0} type: ", type);

        foreach (string pokemon in PokemonLookup.LookupByType(type)){

            Console.WriteLine(pokemon + ", ");

        }

    }

}

​