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]: 9407 @ 4324 # 2220 # 8668 @ 1606 @ 4059
[A]: 8508


[Q]: 8050 # 8744 @ 5247 # 7761 # 8743
[A]: -11951


[Q]: 2290 # 620 # 8120 # 5773
[A]:
-12223