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]: 2548 @ 2442 # 6943 # 1890 @ 3686 @ 9765 # 1273
[A]: 8335


[Q]: 2285 @ 1970 @ 4720
[A]: 8975


[Q]: 3083 # 4468 # 7941 @ 7484 @ 2789
[A]:
947