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]: 16 @ 4157 @ 3953 @ 8863
[A]: 16989


[Q]: 7165 @ 3630 @ 9021 # 4140 @ 319
[A]: 15995


[Q]: 5503 @ 4816 @ 7507 @ 8409 # 8179 # 6837 # 1444
[A]:
9775