StreamOfLetters

import java.util.Scanner;

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

        String finalWord = "";
        int countC = 0;
        int countO = 0;
        int countN = 0;
        boolean isEndOf = false;
        String input = "";


        while (!isEndOf) {
            input = myScan.nextLine();

            if (countC == 1 && countN == 1 && countO == 1) {
                System.out.print(finalWord + " ");
                countC = 0;
                countN = 0;
                countO = 0;
                finalWord = "";
            }
            // End cycle command
            if (input.equals("End")) {
                isEndOf = true;
                continue;

            }
            // Checking a-z A-Z
            if (input.matches("^[a-zA-Z]*$")) {

                if (input.charAt(0) == 'c' && countC == 0) {
                    countC++;
                    continue;
                } else if (input.charAt(0) == 'n' && countN == 0) {
                    countN++;
                    continue;
                } else if (input.charAt(0) == 'o' && countO == 0) {
                    countO++;
                    continue;
                }

                finalWord += input.charAt(0);

            }

        }


    }

}