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.

7591 + 2427 + 6553 + 4047 - 9300 + 2235 + 7278
-5649

5610 - 3034 + 9312 + 7337 + 2731 + 8581 + 5926 - 2102 + 2137
-25278

6896 + 8548 + 1670 + 7550 - 921

-9951