Test
;;
+*
;+*;
Sample module returns:
Expression 1 evaluates to: 111
Expression 2 evaluates to: 1
Expression 3 evaluates to: 11

My AC program returns different result for 3rd string: 111

It's very weird that more complex expression returns smaller result, it fully contradicts the problem statement "It may be assumed that logic of expression evaluation does not depend on context. It means, that each subexpression is always evaluated in the same way with no dependency on it's entrance into the whole expression."

Well, I guess my test can be incorrect though, but it doesn't follow from the problem description. Maybe, it should be updated a little to specify what kind of expressions is acceptable?