Exclude mask range

Hello!

I'm new here and started playing with hashcat yesterday. I have a question though. I'm running this command:
hashcat-cli64.exe -m 2500 -3a -1 ?l?d?u capture.hccap 1?1?1?1?1?1?1?1?1?1?

If this were to fail, and I want to use ?a instead of ?l?d?u. How can I execute all the a? characters but exclude all the characters I already tried in the previous session.

Thanks and regards