Array found where operator expected at mytest2.pl line 14, at end of line
	(Missing operator before ?)
syntax error at mytest2.pl line 14, near "@\@) "
Global symbol "$l" requires explicit package name at mytest2.pl line 14.
Global symbol "$r" requires explicit package name at mytest2.pl line 14.
Global symbol "$l" requires explicit package name at mytest2.pl line 15.
Global symbol "$r" requires explicit package name at mytest2.pl line 15.
Global symbol "$l" requires explicit package name at mytest2.pl line 16.
Global symbol "$r" requires explicit package name at mytest2.pl line 16.
Global symbol "$l" requires explicit package name at mytest2.pl line 17.
BEGIN not safe after errors--compilation aborted at mytest2.pl line 17.