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]: 8816 # 8770 # 5004
[A]: -4958


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


[Q]: 5052 # 6923 @ 1011
[A]:
-860