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]: 9634 + 5896 + 2965 + 6949 - 2226 + 9649 - 3599 - 7110
[A]: -2890


[Q]: 8853 - 4119 - 1919 - 4416 - 7874
[A]:
27181