using System;

using System.Text.RegularExpressions;

public class Program

{

    public static void Main()

    {

        string[] commands = 

        {

            "{AA00:00;|}",

            "{ABC0:93;||}",

            "{AAB08:02;|}",

            "{123AA:AA;|}",

            "{AA123,123:123,123;|}"

        };

        foreach (string command in commands)

        {

            if (Regex.Match(command, "^{[A-Z]+\\d+:\\d+;\\|}$").Success)

            {

                Console.WriteLine("Good command");

            }

            else 

            {

                Console.WriteLine("Bad command");

            }

        }

    }

}