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

namespace Problem_2___Hornet_Comm
{
    class Program
    {
        static void Main(string[] args)
        {
            var input = Console.ReadLine().Split(new string[] { " <-> " }, StringSplitOptions.RemoveEmptyEntries);
            var broadcasts = new List<string>();
            var massage = new List<string>();
            string check = "Broadcast";

            while (input[0] != "Hornet is Green")
            {
                if (input.Length > 1)
                {
                    var firstPartOfInput = input[0].TrimEnd();
                    var secondPartOfInput = input[1].Trim();

                    if (IsNumber(firstPartOfInput) && IsContainingOnlyDigitsAndLetters(secondPartOfInput))
                    {
                        var result = firstPartOfInput.ToCharArray().Reverse().ToArray();
                        var recipientCode = new string(result);

                        massage.Add(recipientCode);
                        massage.Add(secondPartOfInput);
                    }
                    else if (IsNotDigit(firstPartOfInput) && IsContainingOnlyDigitsAndLetters(secondPartOfInput))
                    {
                        var changedLetters = ChangingLetters(secondPartOfInput);
                        broadcasts.Add(changedLetters);
                        broadcasts.Add(firstPartOfInput);
                    }
                }
                 input = Console.ReadLine().Split(new string[] { " <-> " }, StringSplitOptions.RemoveEmptyEntries);
            }

            Console.WriteLine("Broadcasts:");
            PrintResult(broadcasts);
            Console.WriteLine("Messages:");
            PrintResult(massage);

        }

        public static bool IsNumber(string input)
        {
            for (int i = 0; i < input.Length; i++)
            {
                if (char.IsDigit(input[i]))
                {
                    continue;
                }
                else
                {
                    return false;
                }
            }
            return true;
        }

        public static bool IsContainingOnlyDigitsAndLetters(string input)
        {

            for (int i = 0; i < input.Length; i++)
            {
                if (char.IsLetter(input[i]) || char.IsDigit(input[i]))
                {
                    continue;
                }
                else
                {
                    return false;
                }
            }
            return true;
        }

        public static bool IsNotDigit(string input)
        {
            for (int i = 0; i < input.Length; i++)
            {
                if (char.IsDigit(input[i]))
                {
                    return false;
                }
            }
            return true;
        }

        public static string ChangingLetters(string input)
        {
            var result = "";
            for (int i = 0; i < input.Length; i++)
            {
                if (char.IsDigit(input[i]))
                {
                    result += input[i];
                    continue;
                }
                if (char.IsLower(input[i]))
                {
                    result += char.ToUpper(input[i]);
                }
                else if (char.IsUpper(input[i]))
                {
                    result += char.ToLower(input[i]);
                }
            }
            return result;
        }

        public static void PrintResult(List<string> input)
        {
            var index = 0;
            for (int i = 0; i < input.Count/2; i++)
            {
                Console.WriteLine($"{input[index]} -> {input[index+1]}");
                index += 2;
            }
        }
    }
}