Procedures Are Not Running Paralleled?

I have a job that runs two procedure parallely . The code is as follows:

DECLARE
jobno1 NUMBER;
jobno2 NUMBER;
flag NUMBER;
BEGIN
dbms_job.submit(jobno1,'pc;', next_date=>SYSDATE);
dbms_job.submit(jobno2, 'pc2;', next_date=>SYSDATE);

[code]....

And the stored procedure (in SQL File) is as follows:

procedure pc:

create or replace procedure pc
as
begin
for idx in 1..100 loop
dbms_output.put_line(idx);
end loop;
end;
/

procedure pc2:

create or replace procedure pc2
as
begin
for idx in 1..1000 loop
dbms_output.put_line(idx);
end loop;
end;
/

However, when I execute the job , I get the following output:

1
2
3
.
.
.
.
100

[code]....

Which indicates the job 1 got executed 1st and then job2. But this is not what I want.