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.

9964 + 5009 - 6772 + 8761 + 2075 + 6292 + 4157 + 5194
-14752

1451 - 4488 + 4665 + 526 - 3690 + 9483
-5045

6501 - 9987 + 4842

11646