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.

3968 + 5044 + 8713
-9789

5409 - 5550 + 3864 - 5911 + 5222
7784

9366 + 259 - 814

9921