using System;
using System.Linq;
using System.Collections.Generic;

public class Program
{
    public static void Main()
    {
        var words = Console.ReadLine()
            .Split(' ', ',', ';', ':', '.', '!', '(', ')', '\\', '/', '[', ']')
            .Where(word => !string.IsNullOrEmpty(word));

        var lowerCase = new List<string>();
        var mixedCase = new List<string>();
        var upperCase = new List<string>();

        foreach (var word in words)
        {
            var hasNonLetterCharacter = word.Any(x => !char.IsLetter(x));
            if (hasNonLetterCharacter)
            {
                mixedCase.Add(word);
                continue;
            }

            var lowercaseLettersCount = word.Count(x => char.IsLower(x));
            if (lowercaseLettersCount == word.Length)
            {
                lowerCase.Add(word);
            }
            else if (lowercaseLettersCount == 0)
            {
                upperCase.Add(word);
            }
            else
            {
                mixedCase.Add(word);
            }
        }

        Console.WriteLine($"Lower-case: {String.Join(", ", lowerCase)}");
        Console.WriteLine($"Mixed-case: {String.Join(", ", mixedCase)}");
        Console.WriteLine($"Upper-case: {String.Join(", ", upperCase)}");

    }
}