import javax.swing.JOptionPane;
class   Name  {

	public static void main ( String [ ] args)
{	String S1 = "" ;  String M ;
	do
	{  M =  JOptionPane.showInputDialog ("word" ) ;

	System.out.println( S1);


	S1 +=    "\n" + M ;


	  }
		while ( M != "") ;




}
}