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:
5316 + 506 - 8402
answer:
13212


question:
5321 - 5114 + 7476 + 1962
answer:
997


question:
554 + 2709 + 393 - 1645 - 734
answer:

-169