Anyway, may I suggest that you leave automation to someone who knows what they are doing lest these free resources find out that there are hundreds of failed attempts and put a captcha-wall and spoil it for the community? Not that I am the internet police or anything, just an opinion.
Seems there is even an option to download the whole program plus data. A quick look at the zip file shows some python programs, so it would make much more sense to run a local copy and modify it to batch process (it there is not already such an option).
perl -e 'use Crypt::Digest::SHA256 qw[sha256_hex]; print substr(sha256_hex("the Answer To Life, The Universe And Everything"), 6, 2), "\n";'