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:
6284 + 1234 + 9639 + 1470 + 4137 + 9445 + 5309 + 9797 - 4507
answer:
-30240


question:
3069 + 3141 - 6765 + 85 - 9346 + 8391 + 121 + 7644
answer:
-202


question:
5192 + 7822 + 3907 - 785 + 2389 - 1641 - 7494
answer:

994