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:
1673 - 3914 + 8016 + 5937 - 8915 + 4818
answer:
-4269


question:
1137 - 2413 - 5470 - 9797 + 2566
answer:
16251


question:
8266 - 2120 + 1008 - 4026 - 1542 - 3987 - 4067 + 2283 + 8050
answer:

12667