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.

1562 + 8343 + 8480
-15261

1649 + 4642 + 613 - 7051 - 8575
12020

8159 + 5244 - 9663 + 9677 + 9915 + 8773

-15787