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]: 2678 # 5467 @ 8355 # 3124 # 5654
[A]: -3212


[Q]: 2061 # 9512 @ 2202
[A]: -5249


[Q]: 4819 # 7609 @ 4060 # 8476 # 8811 @ 5106 # 2280 @ 5342
[A]:
-7849