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:
2500 + 3268 - 574 + 5695 - 2143 + 404 - 196
answer:
-3954


question:
5630 - 3377 + 9205 - 4071 + 9580 - 7049
answer:
1342


question:
9565 - 8169 + 2210 - 5986 + 8333 + 6270
answer:

6907