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]: 8643 @ 7199 @ 504 # 8068 # 8187 # 1584 @ 6422
[A]: 4929


[Q]: 8842 @ 3530 @ 7537
[A]: 19909


[Q]: 1015 @ 6984 # 9644 @ 8478 # 574 # 1844
[A]:
4415