ineya

// dsh - Data shell

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.util.regex.Matcher;
import java.util.regex.Pattern;


public class DataShell {

    public static class F extends Thread {
        public void run() {
            try {
                sleep(100);
                System.out.flush();
            } catch (InterruptedException e) {
                // TODO Auto-generated catch block

                e.printStackTrace();
            }

        }
    }

    public static void copyFileToStream(String filename, OutputStream o) throws IOException {
        FileInputStream fis = new FileInputStream(filename);

        int c=0;
        while ((c=fis.read()) != -1) {
            o.write(c);
        }

        fis.close();
    }

    /**
     * @param args
     */
    public static void main(String[] args) {
        InputStreamReader isr = new InputStreamReader(System.in);
        BufferedReader br = new BufferedReader(isr);
        String line;

        try {
            new F().start();

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

                if (line.startsWith("q")) {
                    break;
                } else  if (line.startsWith("a")) {
                    line = line.substring(1);
                    System.out.write(line.getBytes());
                } else if (line.startsWith("h")) {
                    Pattern p = Pattern.compile("0x([0-9a-fA-F]{1,2})");
                    Matcher m = p.matcher(line);

                    while (m.find()) {
                        String hexNumber = m.group(1);
                        byte b=Byte.parseByte(hexNumber, 16);
                        System.out.write(b);

                    }
                } else if (line.startsWith("f")) {
                    line = line.substring(1);
                    copyFileToStream(line, System.out);
                }

                //System.out.write(line.getBytes());
                System.out.flush();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

}