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]: 4189 # 3579 @ 7275 # 5186 @ 5825 # 3209
[A]: 5315


[Q]: 3462 @ 9743 @ 8298
[A]: 21503


[Q]: 8356 @ 9511 # 9409
[A]:
8458