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]: 427 # 7974 # 7564 @ 2404 # 4955 # 1239 # 1518 @ 906
[A]: -19513


[Q]: 1040 # 6682 @ 4286 # 1132 # 705 @ 4048 # 9240
[A]: -8385


[Q]: 9587 # 9680 # 6570 @ 6417 @ 3688
[A]:
3442