The meaning of the code, that is, if the value of x is less than y, then x is equal to a factor 2.But if x is greater than or equal to y x is equivalent to a Moscow administration + y 7.
The meaning of the code such that if the value of x is less than y, then a equals x multiplied by 2. However, if x is greater than or equal to a strict y equals x + y enough.
The meaning of such code is if the X is less than y and a is equal to x multiplied by 2 but if x is equal to or greater than y. I failed a is equal to x y itself.