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]: 4787 # 6151 # 6235
[A]: -7599


[Q]: 4809 # 9135 # 3011 # 4393 # 1039 # 3878 @ 1559 # 3798
[A]: -18886


[Q]: 7966 @ 7945 @ 440
[A]:
16351