message decrypter

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

namespace _02._Boss_Rush
{
    class Program
    {
        static void Main(string[] args)
        {
            Regex regex = new Regex(@"^(\$|\%)(?<name>[A-Z][a-z]{2,})(\1): \[(?<first>[0-9]+)\]\|\[(?<second>[0-9]+)\]\|\[(?<third>[0-9]+)\]\|$");

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

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

                Match match = regex.Match(input);

                if (match.Success)
                {
                    string name = match.Groups["name"].Value;
                    int first = int.Parse(match.Groups["first"].Value);
                    int second = int.Parse(match.Groups["second"].Value);
                    int third = int.Parse(match.Groups["third"].Value);

                    int[] array = { first, second, third };

                    StringBuilder output = new StringBuilder();

                    foreach (var item in array)
                    {
                        char j = (char)item;
                        output.Append(j);
                    }

                    Console.WriteLine($"{name}: {output}");

                }
                else
                {
                    Console.WriteLine("Valid message not found!");
                }
            }

        }
    }
}