Return 1 or 10

I'm wondering if there's a clever math expression that works in pure macro language that handles this. The situation is ammunition usage. The macro asks for ?{Number of targets|1|2|3|4|5}. If the user fires at 1 target (a single shot), the expression I'm looking for would return 1. If there are 2–5 targets (a burst), the expression returns 10. Note that ?{Number of targets} is needed elsewhere in the macro, so it can't be ?{Number of targets|1,1|2,10|3,10...}. Anyone got a sneaky way to return these values?

Never mind, I found what I was looking for on the  Useful Macros page, which I hadn't looked at before because I thought that page was just a forum post I couldn't find. The expression I was looking for is: [[ { { ?{Number of targets|1|2|3|4|5}, 0 }>2 } * 9 + 1 ]]