What does mean -q and -r in mp

[camer333]

I'm trying pipe maskprocessor output to hashcat. In most cases when I set -q 3 -r 4, -q 3 -r 3, -q 3 -r 5 , it makes exhausted status. There is cracked status only if I set 0 to both or other large number (30,50). I don't know why!
Everything works fine with only hashcat. Problem occurs throught maskprocessor.

Router's wpa2 password was "11123334" Did I apply -q and -r properly? Where is a problem? I'm very confused

Code:

mp64 -q 3 -r 4 ?d?d?d?d?d?d?d?d | hashcat64 -m 2500 test.hccap

[undeath]

-q 4 -r 4 works but shouldn't -q 4 -r 3 work, too?

[camer333]

It's true. I got it. Rule -q and -r is clear!