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]: 2863 @ 9899 # 2358
[A]: 10404


[Q]: 7757 # 4475 @ 6447 # 2209 # 9966
[A]: -2446


[Q]: 4687 # 1564 # 6583
[A]:
-3460