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.

[EX Q]: 2514 - 3539 - 8491 + 7351 - 1448
[EX A]: 8641

[EX Q]: 4291 + 2761 - 4339 + 8922
[EX A]: -3053

[EX Q]: 3106 + 5921 + 1548 - 5002
[EX A]:
639