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.

6820 - 387 + 8290 - 9203 - 9292 + 9249 - 3079
11242

6800 + 2564 + 8444 + 1912
-6120

4999 + 8554 + 9221

-12776