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:
8839 + 4786 - 7068 + 5502 + 1623 - 1959 - 8567 + 3743 + 4578
answer:
6201


question:
7646 + 8509 - 4372 - 9840 - 6377 - 2924 + 869
answer:
21781


question:
5678 - 4871 - 8859
answer:

19408