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]: 8899 # 4509 # 9411 # 7373
[A]: -12394


[Q]: 5193 # 9816 # 9875 # 1011 @ 1147 @ 5023
[A]: -9339


[Q]: 24 @ 5990 @ 1747 @ 5232 @ 2856 @ 153 @ 8005 @ 4375
[A]:
28382