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.

1808 - 5352 - 8697 + 5058 + 8777 + 8089 - 9688 + 9784
-6163

2759 - 7972 - 7615 + 151
18195

7435 - 4646 + 1639 - 4315 - 4078

18835