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.

3428 - 8444 - 2270 - 3241 - 1368 - 8884 - 6840 - 5265
39740

2969 - 5770 - 665 + 516 - 1172 + 4904 - 384
5540

1277 - 3822 + 5064 + 3615 - 7107 - 5691 + 1554 - 6525 + 714

13475