use strict;
use warnings;

sub MakeLine {
                return "Blah Blah param=$_[0]";
   };

print << "HEREDOC";
First line of heredoc
@{[ MakeLine(3) ]}
@{[ MakeLine(543) ]}
@{[ MakeLine("Some text also") ]}
Last line of heredoc
HEREDOC

##</code><code>##

First line of heredoc
Blah Blah param=3
Blah Blah param=543
Blah Blah param=Some text also
Last line of heredoc