using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace PotokOtBukvi
{
    class Program
    {
        static void Main(string[] args)
        {
            string cod = "";
            int countC = 0;
            int countO = 0;
            int countN = 0;
            int count = 0;
            bool isFirstSecretLetter = false;

            string comand = Console.ReadLine();

            while (comand != "End")
            {
                char letter = char.Parse(comand);

                if ((letter>='a'&& letter<='z') || (letter >= 'A' && letter <= 'Z'))
                {
                    if (letter=='c' &&countC < 1 )
                    {
                        countC++;
                        count++;
                        isFirstSecretLetter = true;
                    }
                    else if (letter == 'o' && countO < 1)
                    {
                        countO++;
                        count++;
                        isFirstSecretLetter = true;
                    }
                    else if (letter == 'n' && countN < 1)
                    {
                        countN++;
                        count++;
                        isFirstSecretLetter = true;
                    }
                    if (count==3)
                    {
                        Console.Write($"{cod} ");
                        count = 0;
                        countC = 0;
                        countO = 0;
                        countN = 0;
                        cod = "";
                    }
                    else if (isFirstSecretLetter==false)
                    {
                        cod += letter;
                    }
                    isFirstSecretLetter = false;
                }
                comand = Console.ReadLine();
            }
            if (comand=="End" && count==3)
            {
                Console.WriteLine($"{cod}");
            }
        }
    }
}