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]: 1508 # 9607 @ 9117 @ 1943 # 3539 # 8743 # 2584 @ 7819
[A]: -4086


[Q]: 6543 @ 9353 @ 2169 # 4681 @ 6446
[A]: 19830


[Q]: 2759 @ 1013 # 5223 @ 4409 # 667 @ 3220 @ 7884
[A]:
13395