combine password with ?d?d?d?d

[Togumelo]

https://hashcat.net/wiki/doku.php?id=rul...kprocessor

I think that's what you need.

Learn how to use that. Learn/understand how rules are made and then you will generate the combinations you want.

Also you should look https://hashcat.net/wiki/doku.php?id=combinator_attack