Star Enigma

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

namespace Problem03
{
    class Program
    {
        static void Main(string[] args)
        {
            var planetCount = int.Parse(Console.ReadLine());
            var allPlanets = new List<string>();
            for (int i = 0; i < planetCount; i++)
            {
                var input = Console.ReadLine();
                var decypherCount = input.ToLower()
                    .Count(p => p.Equals('s') || p.Equals('t') || p.Equals('a') || p.Equals('r'));
                var decypheredText = new StringBuilder();

                foreach (var element in input)
                {
                    decypheredText.Append((char)(element - decypherCount));
                }

                allPlanets.Add(decypheredText.ToString());
            }
            ;
            var attackerRegex = @"@([a-zA-Z]+)[^@\-!:>]*:(\d+)[^@\-!:>]*\!A\![^@\-!:>]*\-\>(\d+)";
            var defenderRegex = @"@([a-zA-Z]+)[^@\-!:>]*:(\d+)[^@\-!:>]*\!D\![^@\-!:>]*\-\>(\d+)";

            var atacked = new List<string>();
            var destroyed = new List<string>();

            foreach (var planet in allPlanets)
            {
                var mathcer = Regex.Match(planet, attackerRegex);
                if (mathcer.Success)
                {
                    atacked.Add(mathcer.Groups[1].Value);
                    continue;
                }

                mathcer = Regex.Match(planet, defenderRegex);
                if (mathcer.Success)
                {
                    destroyed.Add(mathcer.Groups[1].Value);
                }
            }

            Console.WriteLine($"Attacked planets: {atacked.Count}");
            atacked.OrderBy(p=>p).ToList().ForEach(p => Console.WriteLine($"-> {p}"));

            Console.WriteLine($"Destroyed planets: {destroyed.Count}");
            destroyed.OrderBy(p=>p).ToList().ForEach(p => Console.WriteLine($"-> {p}"));
        }
    }
}