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]: 8137 @ 5006 # 7743 @ 1478
[A]: 6878


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


[Q]: 3177 @ 7147 @ 2820 # 8858
[A]:
4286