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]: 8137 + 5006 - 7743 + 1478
[A]: 9396


[Q]: 138 + 3973 - 6085 - 3324 + 6921 + 4411 + 1113 + 8310
[A]: -15181


[Q]: 7972 + 5002 + 549 + 710 - 599 + 6929
[A]:
-4619