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]: 3123 + 9519 - 2864 + 9440 - 756 + 252
[EX A]: -12468

[EX Q]: 6439 - 6685 + 6156 - 3314 + 6845 - 6872
[EX A]: 10309

[EX Q]: 6885 - 863 - 6342 + 6777
[EX A]:
7313