MS Access: Input mask not accepting input

I'm trying to create a mask like this: >L 000 LL. It should allow a letter, three digits and two more letters. But when I enter something like this - A 345 BK - in the "Try it" field of the wizard it says that this input isn't valid, although if I try to enter a really invalid input it beeps and doesn't enter a character. What 开发者_开发知识库am I doing wrong?

I do not think you can have spaces in an input mask.

It appears that it is just a bug in the "Try it" field in the Input mask creation wizard. Just skip the check there and try it on a real input.