[oracle] Oracle: Call stored procedure inside the package

I'm not much in Oracle. I use PL/SQL Developer.

I have the following package:

create or replace package PKG1
as
procedure INIT
(
  nRN                       in number,
  nREC_TYPE                 in number,
  nIDENT                    out number
);

I'm not sure how to call it from PL/SQL Developer environment. I've tried this:

DECLARE
  procId NUMBER;

BEGIN
  EXECUTE PKG1.INIT(1143824, 0, procId);
  DBMS_OUTPUT.PUT_LINE(procId);
END;

But, there's an ORA-06550 (PLS-00103) error.

As you can see I have 2 input and 1 output parameter. I want to print out output parameter. That's all.

Thanks in advance for help.

Goran