Dyslexic?

Just saw the RAF flyby from the roof - very cool as we were nearly directly underneath.

I think I must be dyslexic or something, just had to type a horrible volume identifer which looked something like this 0057h57538ecdcbe000000000000000 and got it wrong twice, l for a 1 and 6 for a b. I know I have problems with numbers though, put a group of more than 4 or 5 and my head starts to swim.