insert digits between 2 wordlists

[kcrowder69]

thank you for the tips. I agree piping would be a simple fix. I first tried this and then realized reading the util docs that piping into the util is not allowed. Similarly, I am assuming the reason you can't apply rules (file) to  a combinator attach is overhead. For that same reason it isn't practical to prepare one list before hand. 7word list becomes 7000 after appending 3 digits * 7 again for second list. Now using a more thorough list of say 10,000 words, my little quad core is hot enough to fry an egg.  before it finally shuts down. (old laptop heat sensors are tricky for hashcat throttling.)

I'll give the replace a try
Thanks again.