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]: 4767 # 4944 # 4202 @ 2582
[A]: -1797


[Q]: 1917 @ 4353 @ 4321 @ 3060 @ 6681 @ 7890 @ 8148
[A]: 36370


[Q]: 525 @ 4251 @ 7245
[A]:
12021