import java.io.File;
import java.io.FileNotFoundException;
import java.util.*;


public class RandomWriter {

	public static void main(String[] args) throws FileNotFoundException {
		Random r = new Random();
		String sentence = readToString("huckfinn.txt");
		int k = r.nextInt(4) + 3;
		int length = 10;
		
		String seed = getSeed(sentence);
		String word = buildWord(seed, k, sentence);
		
		for (int i = 0; i < length; i++) {
			seed = getSeed(sentence);
			k = r.nextInt(4) + 3;
			word = buildWord(seed, k, sentence);
			System.out.print(word + " ");
		}
		System.out.println(".");		
	}

	private static String buildWord(String seed, int k, String sentence) {
		String holder = seed;
		for (int i = 0; i < k; i++) {
			holder += nextBestLetter(holder, sentence);
		}
		return holder;
	}


	private static String nextBestLetter(String holder, String sentence) {
		String winner = "";
		Map<String, Integer> mapOfCandidates = new HashMap<String, Integer>();
		for (int i = 0; i < (sentence.length() - holder.length()); i++) {
			String checker = sentence.substring(i, i + holder.length());
			if (checker.equals(holder) && !mapOfCandidates.containsKey(sentence.substring((i + holder.length()), (i + holder.length() + 1)))) {
				mapOfCandidates.put(sentence.substring(i + holder.length(), i + holder.length() + 1), 1);
			}
			else if (mapOfCandidates.containsKey(sentence.substring((i + holder.length()), (i + holder.length() + 1)))) {
				mapOfCandidates.put(sentence.substring(i + holder.length(), i + holder.length() + 1), mapOfCandidates.get(sentence.substring(i + holder.length(), i + holder.length() + 1)) + 1);
			}
		}
		int max = 0;
		for (String s : mapOfCandidates.keySet()) {
			if (mapOfCandidates.get(s) > max && !s.equals(" ")) {
				max = mapOfCandidates.get(s);
				winner = s;
			}
		}
		return winner;
	}

	private static String getSeed(String sentence) {
		Random r = new Random();
		int index = r.nextInt(sentence.length());
		String holder = sentence.substring(index, index + 1);
		while (holder.contains(" ") || holder.contains(".") || holder.contains(",") || holder.contains("\"")) {
			index = r.nextInt(sentence.length());
			holder = sentence.substring(index, index + 1);
		}
		return holder;
	}
	
	public static String readToString(String path) throws FileNotFoundException {
		String wholeThing = "";
		Scanner scanner = new Scanner(new File(path));
		while (scanner.hasNext()) {
			wholeThing += scanner.next() + " ";
		}
		return wholeThing;
	}
}