import java.io.*;  // for BufferedReader, InputStreamReader, IOException, etc.

/**
 *  A simple Java program that says echos anything the user types 
 *  until Ctrl-D is pressed.
 */
public class Echo {

	/**
	 *  Every Java program needs a "main" method.
	 *  @param args Any additional strings that were included on the command line.
	 */
	public static void main ( String [] args ) throws IOException {

		// Display "Hello World!" if no additional strings were passed.
		String input = stdin.readLine();
		while ( null != input ) {
			System.out.println( input );
			input = stdin.readLine();
		}

	}

	private static final BufferedReader stdin = new BufferedReader(
		new InputStreamReader( System.in ) );

}