Possible to do attack mode 6 and 7 on same attack

[walterlacka]

Should something like this work?

Code:

./hashcat -O -w3 -a6 dict.txt ?a?a?a?a -i --stdout | ./hashcat -O -w3 -m0 -a7 ?a?a -i 'hash'

Trying to accomplish having a dict.txt:
cat
dog
etc

And I want to add ?a?a to beginning and ?a?a?a?a to end of the wordlist