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]: 1664 # 2003 # 3533
[A]: -3872


[Q]: 8280 # 2607 # 4185 # 9243 @ 9839
[A]: 2084


[Q]: 1533 @ 3644 @ 7391 @ 3182 # 6346 # 7615 @ 5538
[A]:
7327