That feels off. It’s like me saying I don’t know English. I merely know the correct alghorithm to give the correct responses to things people give me as input.
There supposedly is a (semantic) process in your brain that makes you believe you understand the sentences you are reading and writing that is on top of the (symbolic) process that tells you what to say and how to say it. And that's the quid of the issue. Searle argues that symbolic computation cannot produce understanding at the semantic level.