How to exclude multiple forums/threads using if condition?

[profanitytalker]

Does anyone here know how to exclude mulitiple forums/threads?

I am trying to place ads on all forums except certain forums. I know how to exclude each forum for the code to show but I don't know how to include all but certain forums...


Example of the code to exclude all but certain forums...

For Forums...

<if condition="in_array($forumid, array(5,7,6,8,9,12,10,11,14,16,13,15,18,19,20,17,66))">

For threads..

<if condition="in_array($thread['forumid'], array(
5,7,6,8,9,12,10,11,14,16,13,15,18,19,20,17,66
))">

What I need though is to include the code in all forums and threads except for certain forums/threads. Can anyone give me the code? I have been trying real hard to try to find the code but to no avail. Please help. Thank you in advance.