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]: 6267 @ 3545 @ 4904 @ 4580
[A]: 19296


[Q]: 2405 @ 2160 @ 394 # 8936 # 2551 @ 5734 @ 5167
[A]: 4373


[Q]: 463 # 489 # 5637 @ 356 # 6394 # 2933 @ 871 # 5213
[A]:
-18976