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:
6142 + 418 - 7535 - 7185 - 5518 + 7544 - 1019 - 938 - 9490
answer:
29865


question:
8901 - 4785 + 1969 + 5985 + 517 + 5651 + 170
answer:
-606


question:
4075 - 7098 + 345 - 9860 + 2156 + 8633
answer:

9899