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.

[Q]: 8171 + 8357 + 171 - 3129 - 6929
[A]: 9701


[Q]: 1860 - 6675 + 8615 + 485 + 6302 - 3385 + 1568
[A]: -5050


[Q]: 7915 + 2611 - 602
[A]:
5906