This code generate the masks I was looking for:
Code:
from itertools import permutations
perms = [''.join(p) for p in permutations('9AAAAAAA')]
perms = set(perms)
with open('masks.txt', 'w') as file:
for perm in perms:
print(perm)
file.write(perm.replace("A", "?l") + "\n")