package ECHO_MODULE;

use Exporter ();
@ISA = qw(Exporter);
@EXPORT = qw($say_hi $say_bye);

sub say_hi {print "hi\n";}

sub say_bye {print "bye\n"}

##</code><code>##

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print "enter subroutine name: ";
$subname = <STDIN>;

$subname() ????