Ireland. I doubt any schools offer it as a curricular, but it is an exam subject. Generally the only people sitting the exam are Chinese native speakers who moved here.
I did one of these a few weeks ago. You had to do 20 in a row and I got about halfway through before realizing the symbols at the back actually meant something. I literally didn't notice the symbol on the left side.
It's sorted alphabetically. All the numbers that start with "1" come first, then all the numbers that start with "2", regardless of how long the actual number is.
my uncle harvey