using System;

using System.Text.RegularExpressions;

public class Program

{

    public static void Main()

    {

        string input = "Tammi 24, Elo 9, Joulu 12";

        string pattern = @"([a-zA-Z]+) (\d+)";

        string replacement = @"$2. $1kuuta";

        string test = Regex.Replace(input, pattern, replacement);

        Console.WriteLine(new string('-', 45) + '\n' + test);

    }

}