//: c10:Echo.java
// From Thinking in Java, 2nd Edition
// Available at http://www.BruceEckel.com
// (c) Bruce Eckel 1999
// Copyright notice in Copyright.txt
// How to read from standard input
import java.io.*;

public class Echo {
  public static void main(String[] args) {
    DataInputStream in =
      new DataInputStream(
        new BufferedInputStream(System.in));
    String s;
    try {
      while((s = in.readLine()).length() != 0)
        System.out.println(s);
      // An empty line terminates the program
    } catch(IOException e) {
      e.printStackTrace();
    }
  }
} ///:~