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]: 7152 @ 8957 # 8060 # 3668 # 8713 # 9420 # 3603
[A]: -17355


[Q]: 9673 @ 7136 # 4171 # 8296 @ 655
[A]: 4997


[Q]: 3517 @ 3137 @ 8468 # 6738 @ 1578
[A]:
9962