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]: 605 @ 9301 @ 640 # 9148 # 8015
[A]: -6617


[Q]: 1559 # 9981 # 6881
[A]: -15303


[Q]: 1501 @ 459 @ 4034
[A]:
5994