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:
146 - 5209 + 892
answer:
4463


question:
1989 - 7828 - 4806 - 7481 + 9860 - 9696 - 7086 + 272 + 8952
answer:
19802


question:
6579 + 1424 - 9739 - 3258
answer:

18152