/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
    public static final char VOVEL_SYMBOL = 'v';
    public static final char CONSONANT_SYMBOL = 'c';
    public static List<Character> consonants = Arrays.asList('b','c','d','g','h','k','l','m','n','p','r','s','t','v');
    public static List<Character> vowels = Arrays.asList('a','e','i','o');
 
    public static String pattern = "cvLLv"; 
 
    public static void generate(StringBuilder word, int index){
        if (word.length() == index) {
            System.out.println(word);
            return;
        }
        List<Character> letterSet = null;
        char currentCharacter = pattern.charAt(index);
        if (currentCharacter == CONSONANT_SYMBOL) {
            letterSet = consonants;
        } else if (currentCharacter == VOVEL_SYMBOL){
            letterSet = vowels;
        } else {
            letterSet = Arrays.asList(currentCharacter);
        }
 
        for (Character letter : letterSet) {
            word.setCharAt(index, letter);
            generate(word, index + 1);
        }
    }
 
    public static void main(String[] args) {
        StringBuilder word = new StringBuilder();
        word.setLength(pattern.length());
        generate(word,0);
    }
}

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