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: 2404 @ 4359 # 5006 # 2796 # 6139

A: -7178
****
Q: 1917 @ 4353 @ 4321 @ 3060 @ 6681 @ 7890 @ 8148

A: 36370
****
Q: 9085 @ 2845 # 6159 @ 1404 @ 2110 # 8797

A:
488
****