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

2167 - 8760 - 4771 - 8633 + 7929 + 9784 + 6892
-274

3638 + 9059 + 4575 - 8750

-1246