In this task you will be given an arithmetic operation and you have to find its answer. The operators '+' and '-' have been replaced with new symbols. Specifically, '+' has been replaced with the symbol '@' and '-' with the symbol '#'. You need to perform the operations in the given equation return the answer

[Q]: 6628 @ 7709 @ 528 @ 8813
[A]: 23678


[Q]: 440 @ 5472 # 6900 # 3389
[A]: -4377


[Q]: 7368 @ 7697 @ 5672 @ 4948 @ 482
[A]:
26167