message translator

using System;
using System.Linq;
using System.Collections.Generic;
using System.Text.RegularExpressions;
using System.Runtime.InteropServices;
using System.Data;
using System.IO;
using System.Reflection.PortableExecutable;

namespace _02._Boss_Rush
{
    class Program
    {
        static void Main(string[] args)
        {
            Regex regex = new Regex(@"!(?<command>[A-Z][a-z]{2,})!:\[(?<message>[a-zA-Z]{8,})\]");

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

            List<int> output1 = new List<int>();

            for (int i = 0; i < times; i++)
            {
                string input = Console.ReadLine();

                Match match = regex.Match(input);

                if (match.Success)
                {
                    string command = match.Groups["command"].Value;
                    string message = match.Groups["message"].Value;

                    char[] chars = message.ToCharArray();

                    foreach (var item in chars)
                    {
                        int j = item;
                        output1.Add(j);
                    }

                    Console.WriteLine($"{command}: {string.Join(" ", output1)}");

                }
                else
                {
                    Console.WriteLine("The message is invalid");
                }
            }
        }
    }
}