package test3;

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

public class EchoPlayer {

	public static String echo(String msg){

		return "echo:"+msg;

	}

	public void talk() throws IOException{

		BufferedReader br=new BufferedReader(new InputStreamReader(System.in));

		String msg=null;

		while((msg=br.readLine())!=null){

			System.out.println(echo(msg));

			if(msg.equals("bye")){

				break;

			}

		}

	}

	public static void main(String[] args) throws IOException {

		new EchoPlayer().talk();

	}

}