import java.util.Scanner;

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

        String input = scanner.nextLine();
        String word = "";
        int count = 0;
        String letter = "";


        while (!input.equals("End")) {
            char valid = input.charAt(0);
            if ((valid >= 'a' && valid <= 'z') || (valid >= 'A' && valid <= 'Z')) {
                if (input.equals("o") || input.equals("c") || input.equals("n")) {
                    if (input.equals(letter) && count > 0) {
                        word += input;
                    } else {
                        count++;
                        letter = input;
                        word += "";
                    }
                } else {
                    word += input;
                }
                if (count == 3) {
                    System.out.print(word + " ");
                    count=0;
                    letter="";
                    word="";
                }}
                input = scanner.nextLine();


        }
    }
}