Part 1. Definition
In this task you will be given an arithmetic operation and you have to find its answer. The symbols of operators '+' and '-' has been swapped i.e you need to perform subtraction when you see a '+' symbol and  addition in case of '-' symbol.
Part 2. Example
5 + 3
Answer: 2
Explanation: Here, '+' represents subtraction operation. So, the answer is 2 (5-3=2).
Part 3. Exercise
4738 + 7389 + 4487 - 5885
Answer:
-1253