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]: 1774 # 6033 # 3757 @ 3570 @ 6463 # 5537
[A]: -3520


[Q]: 1199 @ 5620 # 3468
[A]:
3351