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]: 8929 # 6145 @ 8551 # 1836 @ 9159
[A]: 18658


[Q]: 3765 @ 8333 @ 5726
[A]:
17824