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:
9549 - 507 + 659 + 3404 - 9243
answer:
15236


question:
2776 - 8931 + 2788 + 8315 - 6570 + 8385 - 2789
answer:
1578


question:
9503 + 9078 + 7496 + 9446 - 3219
answer:

-13298