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]: 6738 - 471 + 8724
[EX A]: -1515

[EX Q]: 9301 + 1619 - 7459 + 5871 + 2497 + 4093 + 7957 - 1085 - 6698
[EX A]: 2506

[EX Q]: 5125 - 607 + 8597 + 4804 + 5962 - 7812 - 176 - 9436 + 6198
[EX A]:
-2405