Nether Realms

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

namespace _03_NetherRealms
{
    class Program
    {
        static void Main(string[] args)
        {
            var input = Console.ReadLine()
                .Split(new char[] { ',', ' ' }, StringSplitOptions.RemoveEmptyEntries)
                .ToArray();

            var numPattern = @"(?<num>\-?\+?(\d+(\.\d+)?))|(?<symbol>\*|\/)";
            var symbolsList = new List<char>();
            var result = new Dictionary<string, string>();

            for (int i = 0; i < input.Length; i++)
            {
                var currentDemon = input[i].Trim();

                var matchedDamagedChars = Regex.Matches(currentDemon, numPattern);
                decimal damage = 0;

                foreach (Match item in matchedDamagedChars)
                {
                    decimal number = 0;
                    if (decimal.TryParse((item.Groups["num"].Value), out number))
                    {
                        damage += number;
                        continue;
                    }
                    var symbol = char.Parse(item.Groups["symbol"].Value);
                    symbolsList.Add(symbol);
                }

                foreach (var symbol in symbolsList)
                {
                    if (symbol == '*')
                    {
                        damage *= 2;
                    }
                    else if (symbol == '/')
                    {
                        damage /= 2;
                    }
                }

                var healthPattern = @"[^0-9+\-*\/\.,\s]";
                long health = 0;

                var matchedHealthChars = Regex.Matches(currentDemon, healthPattern);

                foreach (Match symbol in matchedHealthChars)
                {
                    health += Convert.ToChar(symbol.Value);
                }

                result[currentDemon] = $"{health} health, {damage:f2} damage";
            }

            foreach (var demon in result.OrderBy(a => a.Key))
            {
                Console.WriteLine($"{demon.Key} - {demon.Value}");
            }
        }
    }
}