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]: 8929 # 6145 @ 8551 # 1836 @ 9159
[A]: 18658


[Q]: 9487 # 9520 @ 4047
[A]: 4014


[Q]: 6741 # 6860 @ 6911 # 9017 @ 4202
[A]:
1977