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:
7457 - 9732 + 1691 + 2450 + 16 + 1610 + 1729
answer:
9693


question:
3112 - 4832 - 7889 - 6855 - 5294 - 5908 + 9757 - 9064
answer:
33197


question:
139 + 6626 + 4349 + 4153
answer:

-14989