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]: 1999 # 5055 @ 6736 # 8829 @ 7010 # 2968 # 259 @ 5904
[A]: 4538


[Q]: 6704 @ 69 @ 617 @ 7950 # 7615 @ 9447 # 8908
[A]: 8264


[Q]: 4557 # 5087 # 9529 # 2542
[A]:
-12601