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]: 8324 # 6868 # 6537
[A]: -5081


[Q]: 8109 @ 8997 # 3310 # 8023 @ 2548 @ 9625 # 7170
[A]: 10776


[Q]: 2210 # 249 @ 6810 # 8266
[A]:
505