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]: 2862 - 964 + 1644
[A]: 2182


[Q]: 4486 + 7884 - 172 + 2615
[A]: -5841


[Q]: 2167 + 2124 - 399 + 8588
[A]:
-8146