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]: 9720 @ 6485 @ 1745 @ 728
[A]: 18678


[Q]: 4767 # 4944 # 4202 @ 2582
[A]: -1797


[Q]: 8915 @ 8709 # 6716 @ 4326
[A]:
15234