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]: 7065 # 7713 # 7473 # 664 # 8030
[A]: -16815


[Q]: 2678 # 5467 @ 8355 # 3124 # 5654
[A]: -3212


[Q]: 2402 # 1499 @ 9001 # 57 @ 3092
[A]:
12939