dragon army

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

public class Dragon
{
    public string Colour { get; }
    public int Armor { get; }
    public int Damage { get; }
    public int Health { get; }
    public string Name { get; }

    public Dragon(string colour, string name, int damage, int health, int armor)
    {
        this.Colour = colour;
        this.Name = name;
        this.Damage = damage;
        this.Health = health;
        this.Armor = armor;
    }
    public override string ToString()
    {
        string result = $"-{this.Name} -> damage: {this.Damage}, health: {this.Health}, armor: {this.Armor}";
        return result;
    }
}

public class StartUp
{
    public const int DefaultHealth = 250;
    public const int DefaultDamage = 45;
    public const int DefaultArmor = 10;

    static void Main()
    {
        Dictionary<string, List<Dragon>> allDragons = new Dictionary<string, List<Dragon>>();

        int numberOfDragons = int.Parse(Console.ReadLine());

        for (int i = 0; i < numberOfDragons; i++)
        {
            string[] input = Console.ReadLine()?.Split().ToArray();


            string colour = input[0];
            string name = input[1];
            int damage = int.TryParse(input[2], out int inputDamage) ? inputDamage : DefaultDamage;
            int health = int.TryParse(input[3], out int inputHealth) ? inputHealth : DefaultHealth;
            int armor = int.TryParse(input[4], out int inputArmor) ? inputArmor : DefaultArmor;

            Dragon dragon = new Dragon(colour, name, damage, health, armor);

            if (!allDragons.ContainsKey(colour))
            {
                allDragons.Add(colour, new List<Dragon>());
            }

            Dragon itExists = allDragons[colour].FirstOrDefault(d => d.Name == name && d.Colour == colour);

            if (itExists != null)
            {
                int index = allDragons[colour].IndexOf(itExists);
                allDragons[colour][index] = dragon;
            }
            else
            {
                allDragons[colour].Add(dragon);
            }
        }

        foreach (var dragons in allDragons)
        {

            double totalDamage = dragons.Value.Average(x => x.Damage);
            double totalHealth = dragons.Value.Average(x => x.Health);
            double totalArmor = dragons.Value.Average(x => x.Armor);
            string colourOfDragon = $"{dragons.Key}::({totalDamage:f2}/{totalHealth:f2}/{totalArmor:f2})";
            Console.WriteLine(colourOfDragon);
            List<Dragon> colouredDragons = dragons.Value.OrderBy(x => x.Name).ToList();


            foreach (Dragon dragon in colouredDragons)
            {
                Console.WriteLine(dragon.ToString());
            }

        }
    }
}