You will be given a definition of a task first, then some input of the task.
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.

4864 - 9133 - 8662 - 9305 - 7575
Output:
39539