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]: 5235 @ 3917 @ 4902 @ 3831 # 6517
[A]: 11368


[Q]: 2763 @ 869 # 8299
[A]: -4667


[Q]: 3241 # 8316 # 2332 @ 5827 # 9071 # 786 @ 8597 @ 2000
[A]:
-840