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.

6646 + 4878 - 8881 - 992 + 7276
4365

2131 + 4513 + 3760 - 9342 + 7779 + 4653 + 3111
-12343

1676 - 6154 - 5676 - 4118 + 9092 - 3794 + 5270 - 8655

15711