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.

[Q]: 597 + 4303 + 4507 + 4779 - 8079
[A]: -4913


[Q]: 5539 + 616 - 1640 - 7665 - 8787 - 5104 + 8431 + 9502
[A]: 10186


[Q]: 3781 + 3323 - 433 + 7940 - 6377 + 6389 + 3947 - 8157
[A]:
-2851