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]: 2377 @ 4500 # 8359 @ 9946 # 9011
[A]: -547


[Q]: 2863 @ 9899 # 2358
[A]: 10404


[Q]: 3934 @ 5905 # 3275 # 247 @ 5160 @ 3309
[A]:
14786