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:
6894 + 3927 + 7884 - 4132 - 6563 + 4281
answer:
1497


question:
4139 - 6541 - 2616 + 299 - 700 - 6684
answer:
20381


question:
5586 + 7268 + 3422 - 9985 + 542 - 9645
answer:

13984