import java.util.ArrayList;
import java.util.Arrays;
import java.util.Scanner;  // 75/100

public class _04_Split_by_Word_Casing {
     public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        String input = scanner.nextLine();
        String[] text = input.split("[ \\[\\],;\\\\:.!/()\"']+");

        ArrayList<String> sentence = new ArrayList<>();
        for (String word : text)
        {
            sentence.add(word);
        }

        ArrayList<String> lowerCaseWords = new ArrayList<>();
        ArrayList<String> mixedCaseWords = new ArrayList<>();
        ArrayList<String> upperCaseWords = new ArrayList<>();

        for (String word : sentence)
        {
            boolean isMixed = false;
            for (int i = 0; i < word.length(); i++)
            {
                if (!Character.isLetter(word.charAt(i)))
                {
                    isMixed = true;
                    break;
                }
            }
            if (word.toUpperCase().equals(word) && !isMixed && !word.isEmpty()){
 upperCaseWords.add(word);
} else if (word.toLowerCase().equals(word) && !isMixed && !word.isEmpty()) {
    lowerCaseWords.add(word);
} else if (!word.isEmpty()){
    mixedCaseWords.add(word);
}
        }
        System.out.println("Lower-case: " + String.join(", ", lowerCaseWords));
        System.out.println("Mixed-case: " + String.join(", ", mixedCaseWords));
        System.out.println("Upper-case: " + String.join(", ", upperCaseWords));
    }
}