When you visually compare two hashes, how many digits do you check?

The strings hashed below are "retr0id_18b1f814a8e2d9c4fb9c" and "retr0id_1253dea672ebfa240e94", if you want to check for yourself.
@retr0id It is easier to check every digit when the hash are vertically aligned. (command_that_generate_checksum); echo expected_checkum