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:
1837 - 6362 - 226
answer:
8425


question:
4224 + 9155 + 116 - 5148 - 7166 - 7397 - 3883 - 2139
answer:
20686


question:
7968 + 6568 - 4265 - 8734 - 8834 - 8258 - 3622 - 2231
answer:

37344