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.

6815 - 396 - 2187 + 8526 + 1176 - 7273 - 9622
16591

84 - 4898 - 2883 + 5111 - 7812 - 5830 + 3330 + 8500 + 6754
-2188

1668 - 419 - 3077

5164