instruction:
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.
question:
136 + 9772 - 2848 - 4980 + 6156 - 883 + 5407 + 3211
answer:
-15699


question:
6570 + 2902 + 9219 - 6971 + 6886 + 765
answer:
-6231


question:
2288 + 2890 - 2639 + 5166
answer:

-3129