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.

5773 - 2989 + 8993 + 6702 + 2237 - 1402 - 4236 - 1857
-1675

7344 + 9206 + 3989 + 5648 - 7620
-3879

2140 + 2454 + 702 + 7686 - 5382 + 6504 + 4562 + 5162

-19548