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]: 3881 + 3747 + 6493 - 7538
[A]: 1179


[Q]: 8974 + 8978 - 8097
[A]: 8093


[Q]: 2458 + 4195 - 6382
[A]:
4645