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.

1278 + 4628 + 2357 + 3694 + 5775 + 8542 - 793
-22925

1540 + 6977 + 9400 - 5524 - 1970 + 8397 - 6006 + 3183
-12917

609 - 7741 - 4312 + 5169 - 1671 + 8497 + 7935 + 2177 - 4166

-5279